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Layered spaghetti casserole dinner, combined with a saucy beef mixture cooked in butter olive oil, and topped with shredded parmesan and mozzarella cheese.

Spaghetti Beef Casserole Diethood Spaghetti Beef Casserole Recipe

pinit fg en rect gray 28 Spaghetti Beef Casserole Recipe

First thing is first – TGIF! The weekend has arrived!

Let’s mention the other obvious – today is the last day of February. (Already?!?)

And last, but not least, even though tomorrow is the first day of March, the polar vortex decided to come back to Indiana; it’s -134 outside. Literally, it feels like ice is cutting through you when you walk out there. 

But, cold or not, I have to get out there and shop. I have to be honest; the shopping part? That’s what makes this cold bearable.

On the other hand, thank goodness for Costco and all its things in one place, right?

Costco Walmart Spaghetti Beef Casserole Recipe

Among other things, I picked up a huge package of Kirkland Beef, just in case another snow storm decides to hit us – I want to be prepared, ya know. As this polar vortex pulls into full swing, again, I find myself wanting to cook anything and everything comfort-food.

In fact, can we just talk about casseroles until this polar bear decides to find Antarctica, again?

Beef Mixture Diethood Spaghetti Beef Casserole Recipe

Let’s discuss this Spaghetti Casserole. This is a family favorite. I pair cooked spaghetti with a thick, saucy, and delicious beef mixture cooked in olive oil. It’s SO GOOD!

This time around I traded my go-to olive oil for the Star Butter Flavored Olive Oil that I recently picked up at Walmart, since it is the only store that sells it.

All I can say is… butter. It’s profoundly comforting. All it takes is a good dose of this oil to take ground beef to a better level.

Star Olive Oil Diethood Spaghetti Beef Casserole Recipe

Flavor layering – this is some goooood stuff. There’s tomatoes, there’s mushrooms, there’s garlic, there’s all-things-amazing in this dish.
This is a skillet of food that can’t wait to be shared. This has every.thing. that a good, warm casserole should have. It’s layered, it’s beefy, it’s cheesy, it’s messy – good Lawwwwd, pass me the fork!

Casserole Spaghetti Beef Diethood Spaghetti Beef Casserole Recipe


follow me on pinterest button Spaghetti Beef Casserole Recipe

Spaghetti Beef Casserole Recipe
Prep time
Cook time
Total time
Layered spaghetti casserole dinner, combined with a saucy beef mixture cooked in butter olive oil, and topped with shredded parmesan and mozzarella cheese.
Serves: Serves 4 to 6
  • 1 package (1-pound) spaghetti, cooked
  • 2 tablespoons Star Butter Flavored Olive Oil
  • 1 yellow onion, diced
  • salt, to taste
  • 1 pound Kirkland Ground Beef
  • 3 cloves garlic, minced
  • fresh ground pepper, to taste
  • 1 package (8-ounces) sliced fresh mushrooms
  • 1 can (14.5-oz) Italian Diced Tomatoes, drained
  • 1 cup tomato sauce
  • 1 tablespoon freeze dried basil
  • 1 tablespoon chopped fresh parsley
  • 1 cup shredded part-skim mozzarella cheese
  • 1 cup shredded parmesan cheese
  1. Cook spaghetti according to the directions on the package; set aside.
  2. Heat olive oil in a large saucepan over over medium heat.
  3. Add diced onions and season with salt; cook for 1 minute.
  4. Add ground beef, garlic, and season with pepper; continue to cook until beef is browned.
  5. Stir in sliced mushrooms, tomatoes, and tomato sauce.
  6. Bring to a boil, then lower to a simmer; cover and continue to cook for 15 minutes.
  7. Remove from heat and stir in basil and fresh parsley.
Preheat oven to 375.
  1. Lightly grease a casserole dish with cooking spray.
  2. Layer ⅓ of cooked beef mixture on the bottom of dish.
  3. Add ½ of cooked spaghetti over mixture.
  4. Top with half of remaining beef mixture.
  5. Layer spaghetti over beef.
  6. Top with the rest of the beef mixture.
  7. In a small bowl, combine both cheeses and mix until thoroughly combined.
  8. Sprinkle cheese over beef.
  9. Bake for 18 to 20 minutes, or until bubbly and cheese is melted.
  10. Let cool few minutes before serving.
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18 Comments on this article. Feel free to join this conversation.

  1. Ramona March 6, 2014 at 6:18 AM - Reply

    Wonderful and hearty dinner. :)

  2. Valerie March 3, 2014 at 7:14 AM - Reply

    This polar vortex is horrendously stubborn, isn’t it. I’m so low I have been living on cereal and bananas – you’ve no idea how luscious this casserole looks to me right now! :)

  3. mjskit March 2, 2014 at 8:56 PM - Reply

    Oh yea – now that’s a meal!! Your pictures are delicious!

  4. elayne March 2, 2014 at 8:02 PM - Reply

    Looks yummy. Do you drain the meat after you brown it?

    • Katerina Petrovska March 2, 2014 at 8:23 PM - Reply

      Hi, Elayne! I normally don’t, but it will work just as well if you did. Hope that helps. :)

  5. A_Boleyn February 28, 2014 at 12:59 PM - Reply

    Nice meal and all in one skillet too.

  6. Jocelyn (Grandbaby Cakes) February 28, 2014 at 10:33 AM - Reply

    I weird if I ask you to adopt me? I know I’m a grown woman but please?

    • Katerina Petrovska February 28, 2014 at 12:17 PM - Reply

      Have your beautiful face and amazing personality every day of my life?! HECK YES I want to adopt you!!

  7. Consuelo @ Honey & Figs February 28, 2014 at 9:14 AM - Reply

    It’d be my family’s favorite as well! I cannot believe how delicious this stuff looks. Cheese + meat + tomato sauce + carby goodness??? I’m sold. This needs to be my dinner today, it looks wonderful.
    Hope you have a wonderful weekend! xxxx

  8. Taylor @ Food Faith Fitness February 28, 2014 at 6:53 AM - Reply

    Such a fun twist on spaghetti! You can never go wrong with carbs, beef and cheese. So…this wins.

    • Katerina Petrovska February 28, 2014 at 9:57 AM - Reply

      LOL! Isn’t that the truth! Carbs – I have a love/hate relationship with them. :-) Thanks, Taylor!

  9. Julia @Vikalinka February 28, 2014 at 5:31 AM - Reply

    Beautiful dish and I absolutely adore the skillet on the stove shot! :-)

    • Katerina Petrovska February 28, 2014 at 9:58 AM - Reply

      Thanks Julia!! I also love those shots – they make it all very real. :)

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