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Cheesy Broccoli, Sausage and Cauliflower Casserole

This Cheesy Broccoli, Sausage and Cauliflower Casserole is a creamy low-carb dinner idea made with smoked sausage and hearty vegetables. It’s an easy, cheesy casserole recipe the whole family will love!

For a meatless version, try this creamy Broccoli Cheese Casserole

Cauliflower Casserole – Low Carb Dinner Idea

It is time to indulge in this cheesy and creamy Broccoli Cauliflower Casserole – a luscious, low-carb masterpiece featuring smoked sausage and hearty veggies. This super cheesy casserole dish will surely win the hearts of everyone at the table!

Low-carb meals are my jam, and this particular casserole is one of my favorites. It’s a dish that proves mindful eating can be synonymous with comfort food, providing a balanced, nutrient-packed meal that is still hearty and gratifying.

The magic of this casserole lies in the best of the best ingredients! A delicious combo of juicy sausage, fresh broccoli, and cauliflower, all topped with a creamy, rich cheese sauce. A casserole that is a testament to how good choices can coexist with indulgent flavors. Each bite is pure love on a plate, from its gooey cheese to the slightly crisp edges of roasted veggies! ?

Why You Should Make This Casserole

  • Low-Carb: If you’re following a low-carb or ketogenic diet, this casserole fits right in. It’s a hearty meal that aligns with your dietary needs without sacrificing flavor.
  • Versatile: This casserole can easily be adapted to suit your tastes. Feel like switching up the veggies or cheese? Go for it! The recipe is flexible.
  • Family-Friendly: It’s a hit with adults and kids alike. The creamy, cheesy texture appeals to younger palates, while adults can appreciate the depth of flavors.
  • Easy to Prepare: No complicated steps or obscure ingredients here. This casserole is straightforward, and perfect for weeknight dinners.
    a mix of smoked sausage, cauliflower, and broccoli florets in a baking dish

    How to Make Cauliflower Casserole

    You don’t need anything fancy to make this casserole.  You can also play around with the ingredients to make it your own!


    • Broccoli Florets & Cauliflower Florets
    • Vegetable Oil
    • Onion & Garlic
    • Polish Sausage or Andouille Sausage: Or any other pre-cooked sausage.
    • Cream Cheese
    • Mayonnaise: Plain yogurt or sour cream also work wonderfully as substitutions.
    • Shredded Cheeses: Use your favorite blend.


    1. Preheat the oven to 400˚F and grease a 9×13 baking dish with butter or cooking spray; set aside.
    2. Add broccoli and cauliflower florets to boiling water and cook for 3 minutes; drain and set aside.
    3. Heat vegetable oil in a large skillet, stir in the onions, and cook for 2 minutes. Stir in the garlic and smoked sausage, and cook until browned on all sides.
    4. Transfer broccoli, cauliflower, and sausage mixture to the baking dish.
    5. Combine the cream cheese, mayo, shredded cheese, dijon mustard, salt, and pepper in a mixing bowl; add it to the broccoli mixture and stir until combined.
    6. Sprinkle remaining shredded cheese over the top and bake for 12 to 15 minutes or until golden brown.
    broccoli and cauliflower florets covered in a creamy cheese mixture

    Ideal for weeknight dinners or casual get-togethers, this casserole is ready to be the star of your dinner table; a perfect marriage of ingredients and good old comfort food. It’s a simple sausage bake packed with robust flavors, fresh veggies, and a creamy cheese blend.

    Tips for Broccoli Cauliflower Casserole

    • Lightly Grease Your Baking Dish: Make sure you don’t forget to grease your baking dish. It will make your life so much easier! Just a dash of cooking spray will do the trick. If you don’t grease the pan, the bottom of your casserole might stick to it.
    • Sausage: While you can use any pre-cooked sausage, consider using one with a strong flavor profile, such as Polish or andouille sausage, to enhance the overall taste of the casserole.
    • Pre-Cooking the Vegetables: Make sure to pre-cook your broccoli and cauliflower just enough so they’re tender but still have a bit of crunch.
    • Don’t Overcook Your Garlic: The garlic cloves will cook quickly, so make sure you keep an eye on them. You don’t want them getting too hard and burnt.
    • Stir the Sausage: In order to get your smoked sausage browned evenly, you’ll have to stir it often while it’s cooking with the garlic and onions.

    Serving Suggestions

    This is a versatile dinner that pairs well with just about anything! Here are some of my favorite sides to serve it with:

    • Roasted Carrots: These Maple Roasted Carrots are sweet, buttery, and super easy to throw together. Their sweetness compliments the savory sausage casserole while keeping your dinner healthy and fresh.
    • Deviled Avocados: These creamy Deviled Avocados are fun, simple, and full of flavor. They have a cool, smooth texture that will go great with your cauliflower bake. Or how about these Air Fryer Avocado Fries!
    • Cocktails: After a long day when you just want to sit down with a relaxing meal, throw together a cocktail to enjoy with this casserole. My Cucumber Mojitos and Apple Cider Mimosas are easy options that never fail to satisfy.
    big silver spoon set inside a cheesy cauliflower broccoli casserole studded with slices of smoked sausage

    How to Store and Reheat Leftovers

    • This dinner almost never makes it past the first night at my house. But if you do end up with leftovers, you can easily save them for later! Just store your casserole in an airtight container in the refrigerator for 3 to 4 days.
    • To reheat, put it in the oven at 350°F for 15 minutes or until it’s nice and hot.

    More Low Carb Casseroles


    big silver spoon set inside a cheesy cauliflower broccoli casserole studded with slices of smoked sausage

    Cheesy Broccoli, Sausage, and Cauliflower Casserole

    Katerina | Diethood
    This Cheesy Cauliflower, Broccoli and Sausage Bake is a creamy low-carb dinner made with smoked sausage and hearty vegetables. It's an easy, cheesy casserole recipe the whole family will love!
    4.54 from 26 votes
    Servings : 8
    Prep Time 20 minutes
    Cook Time 15 minutes
    Total Time 35 minutes


    • 1 pound broccoli florets
    • ½ pound cauliflower florets
    • 1 tablespoon vegetable oil
    • 1 small yellow onion, finely diced
    • 3 cloves garlic, minced
    • 12 ounces smoked sausage, polish or andouille, sliced into 1-inch rounds
    • 8 ounces cream cheese, room temperature, cut into cubes for easier mixing
    • ½ cup mayonnaise, or sub plain yogurt or sour cream
    • 2 cups shredded mexican blend cheese, divided
    • 2 tablespoons dijon mustard
    • salt and fresh ground black pepper, to taste


    • Preheat oven to 400˚F and lightly grease a 9×13 baking dish; set aside.
    • Add water to a large pot, filling it about halfway up, and bring to a boil.
    • Add broccoli florets and cauliflower florets to the boiling water; bring to a boil and continue to cook for 3 minutes. Drain well and set aside.
    • In the meantime, add the vegetable oil to a skillet and heat over medium-high heat. Stir in the onions and cook for 2 minutes; add the garlic and cook for 15 seconds.
    • Then, stir in the smoked sausage and cook for 3 minutes or until browned on all sides. Stir frequently.
    • Transfer the broccoli, cauliflower, plus sausage mixture to the baking dish.
    • In a mixing bowl, combine cream cheese, mayonnaise, 1 cup shredded cheese, dijon mustard, salt, and pepper; mix until thoroughly incorporated.
    • Stir the cream cheese mixture into the broccoli mixture; stir around until everything is well combined. Add remaining shredded cheese on top.
    • Bake for 12 to 15 minutes, or until cheese is melted and top is golden brown.
    • Remove from oven and serve.


    • Don’t forget to grease your baking dish lightly to prevent sticking.
    • Keep a close eye on your garlic while cooking to avoid burning.
    • Pre-cook the veggies until just tender.
    • Pick flavorful precooked sausages like Polish or Andouille. When cooking it, stir the sausage frequently for even browning.
    • Try crushed pork rinds or almond slivers for added crunch. Sprinkle them over the top of the casserole before baking.
    • Experiment with different cheeses.
    • Add red chili flakes or hot sauce for spice.
    • Serve immediately for the best cheesy texture.
    • Store leftovers in the refrigerator for 3 to 4 days.


    Calories: 450 kcal | Carbohydrates: 10 g | Protein: 16 g | Fat: 39 g | Saturated Fat: 15 g | Polyunsaturated Fat: 9 g | Monounsaturated Fat: 12 g | Trans Fat: 0.04 g | Cholesterol: 82 mg | Sodium: 825 mg | Potassium: 433 mg | Fiber: 2 g | Sugar: 3 g | Vitamin A: 910 IU | Vitamin C: 65 mg | Calcium: 393 mg | Iron: 1 mg | Net Carbs: 8 g

    Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.

    Course: Dinner
    Cuisine: American
    Keyword: broccoli bake, broccoli casserole, broccoli cauliflower casserole, cauliflower bake, cauliflower casserole, sausage casserole, sausage casserole recipe, smoked sausage casserole
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    57 comments on “Cheesy Broccoli, Sausage and Cauliflower Casserole”

    1. The base with the cream cheese, mayo, mustard, and S&P is good but definitely makes more cream than needed for the measurements of what you’re mixing into it. I used two 12-ounce bags of California Medley steamable vegetables (broccoli, cauliflower, and carrots) and one kielbasa link and – though it was good – it needed more substantiality to it. Next time, I am going to add a cup or so of precooked jasmine rice to the whole thing so that it’s a full dinner in one dish.

      Oh, and I didn’t even soften the cream cheese. I put the pan-fried kielbabsa and garlic into a large bowl, put all the cream mixture ingredients and all the shredded cheese on top of that, dumped the still-hot steamable veggies on that, and let it sit for about 5 to 7 minutes so the heat softened everything. Then, I mixed it slowly with a rubber spatula, scooped it into the sprayed 9×13 dish, and baked it for 20 minutes.

    2. Will definitely make this again! Did not have enough smoked kielbasa, so also browned/cooked 2 links of fresh and added to what I had. Delicious! Picky husband went for seconds! 😋

    3. This is amazing! I added carrots and green beans, so more variety of veggies. Otherwise, made the recipe as is and I will definately make it again!

      1. Technically, yes, you could, but my advice is to avoid freezing dairy-heavy casseroles because ingredients such as heavy cream or cream cheese will separate when frozen, which can result in a grainy texture when defrosted.

    4. Avatar photo
      Connie Tillman

      I tried this recioe and found it really tasty. I didn’t need the sausage but it did add another dimension to the dish. Next time I’ll add a little more cream cheese. Great!

    5. I’ve made this recipe twice now and my ONLY complaint is that it takes so long to put together. I don’t see how it can be put together in just 20 minutes? I made recipe exactly (except use Light Laughing Cow rather than cream cheese) and it is unbelievable how tasty it is. My husband went on and on about how delicious it is.

      Per other comments, It only looks like there isn’t enough sauce for the vegetables / sausage but it is so rich you don’t need anymore (and I wouldn’t want anymore). It’s perfect. I did raise an eyebrow when I saw Dijon mustard, but you don’t taste it and this truly is one of the best broccoli casseroles I’ve ever tasted.

    6. Avatar photo
      Naomi Dvorachek

      Really loved the finished cassserole but had to make several changes to make it a great finished product. There was not nearly enough sauce, it would have been a dried up mess if prepared per the recipe. Added about 1/2 cup cream, w eggs slightly beaten and another cup of cheese to the sauce to even coat the veggies and meat.

      1. I don’t know what I did wrong! This was terrible! I followed instructions to the letter. Waaay too much cream cheese … neither my daughter nor I liked it! Threw it out.

    7. Avatar photo
      Rhonda Leland

      It looks like you have cherry tomatoes in this recipe. Which sound delicious. Otherwise what if the red stuff on top?

    8. Made this for dinner tonight. It was amazing. In regards to WW is it 17 points total for the whole casserole or 17 points a serving?

    9. Avatar photo
      Caitrin Baker

      I was excited for this recipe, but it just didn’t turn out as good as I was expecting. My husband looked at the recipe and said it looked for yummy for dinner. But we were both disappointed. Neither of my kids liked it either. They’re good eaters and they could barely finish their servings. Can’t exactly pinpoint what didn’t taste right, it was just lacking.

    10. Made this tonight for dinner and used 1lb each of broccoli and cauliflower. I didn’t love the smoked sausages I used so would just use my regular favourite sausages next time. I was also expecting the sauce to be a little creamier. I have a similar recipe and it calls for a bit of milk which I would use next time to make this sauce creamier. Otherwise very good dish, very flavourful. Will make again with mentioned changes.

    11. Delicious! My fiance says very flavorful. Will be adding this to my dinner rotation menus. Thanks for sharing!

          1. Katerina - Diethood
            Katerina Petrovska

            You can definitely freeze it, but when thawing you risk the cream separating and the result might be a grainy casserole.

    12. Made this last night and it was delicious! I didn’t have cauliflower florets so I just used riced. And I added a little more sausage (to use the rest of my open package). Turned out really good – would def make again.

        1. Made this tonight, used a steam bag of cauliflower/broccoli and it was delicious! Can’t wait to try more of your recipes!

    13. Avatar photo
      claudia denington

      Unbelievably tasty recipe- I got a bit creative and substituted sausage for vegan sausages, used a touch of almond milk and vegan butter instead of cream cheese, used vegan mayo and it was DIVINE!

      Its sitting on the side ready for my partner to taste and hes going to LOVE IT!

    14. One of the tastiest things I have ever put in my mouth. I was smart to make two batches LOL All of the flavors just come together AMAZING

      1. Easy and versatile. I don’t eat mustard or mayo, used sour cream and mustard seasoning and used flavored chicken sausage. Very good. This would be great for picky veggie eaters cause the flavor for me was the meat and cheese mixture. If your a big meat or veggie eater you could easily double either.

        1. Katerina - Diethood
          Katerina Petrovska

          I am very glad you enjoyed it!! I need to try your version with sour cream, sounds really good! Thank YOU! 🙂

    15. Avatar photo
      Jacque Hastert

      I love an easy and cheesy casserole like this! I have added this to my menu for next week.

    16. Avatar photo
      Erin | Dinners,Dishes and Dessert

      I’m drooling! This Cheesy Broccoli, Sausage and Cauliflower Casserole is is everything I love!

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