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+ servings
Lifting up a slice of zucchini casserole from a baking dish.

Cheesy Zucchini Casserole

Katerina | Diethood
Packed full of fresh zucchini and cheddar cheese, this easy and creamy Zucchini Casserole is a delicious, low carb dinner that comes together in just 30 minutes!
Servings : 6 servings
Prep Time 5 mins
Cook Time 30 mins
Resting Time 10 mins
Total Time 45 mins


  • 2 to 3 zucchini, sliced into half moons about 1/4-inch thick (you will need 6 cups total)
  • 1/4 teaspoon salt
  • 1/3 cup heavy cream
  • 3 eggs
  • 1/4 cup grated parmesan cheese
  • 3 to 4 garlic cloves, minced (1 tablespoon minced garlic)
  • 1 teaspoon dried basil
  • 1/8 teaspoon ground nutmeg
  • 1/4 teaspoon fresh ground pepper, or to taste
  • 1 1/2 cups shredded cheddar cheese, divided
  • 2 tablespoons butter, sliced into 1/4-inch thick pieces
  • chopped fresh parsley, for garnish


  • Preheat oven to 350˚F.
  • Grease a 9-inch baking dish with butter.
  • Add the sliced zucchini to the baking dish and sprinkle with salt; mix and set aside.
  • In a mixing bowl whisk together the heavy cream, eggs, parmesan cheese, garlic, basil, nutmeg, and ground pepper.
  • Layer 1/2 cup of shredded cheddar cheese over the zucchini.
  • Pour the prepared cream sauce over the zucchini and scatter pieces of butter over the zucchini and sauce.
  • Bake for 25 minutes.
  • Remove from oven and sprinkle with remaining cheese.
  • Bake for 7 to 10 more minutes, or until bubbly, browned, and zucchini is tender.
  • Remove from oven and let stand 10 minutes.
  • Garnish with parsley; Cut and serve.



  • LOWER points down to 6 by using Half & Half in place of Heavy Cream, and use Low Fat Shredded Cheddar Cheese.
  • If you like a softer zucchini, but the casserole is already browned on top, loosely place foil over the baking dish to keep it from browning further. 
  • To lift out a perfect, intact square like the one you see in the first photo, you will need to let the casserole cool for about 20 minutes. 


Calories: 256 kcal | Carbohydrates: 4 g | Protein: 13 g | Fat: 22 g | Saturated Fat: 13 g | Cholesterol: 143 mg | Sodium: 411 mg | Potassium: 244 mg | Fiber: 1 g | Sugar: 2 g | Vitamin A: 880 IU | Vitamin C: 12.1 mg | Calcium: 288 mg | Iron: 1 mg | Net Carbs: 3 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, Side Dish
Cuisine: American, American/Southern, Italian
Keyword: baked zucchini, easy zucchini recipes, keto dinner idea, keto side dishes, low carb recipe, vegetarian dinners, zucchini casserole