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Italian Spaghetti Squash Bake

Spaghetti Squash Casserole is not something that I remember eating in my youth. In fact, I didn’t know what a spaghetti squash was until I was just entering my college days. Man had I been missing out.

While I did grow up in an Italian-American family, lasagna was a dish that I always looked forward to. We didn’t have it very often, but when we did… we did. I remember my mother always making 4 or 5 pans of the Italian dinner and sharing some with family, freezing some, eating some (or a lot…).

Naturally, when I started eating according to a Keto diet, I knew I had to make a low carb and high fat version of this lasagna! Layers of fatty meats, creamy cheeses and slightly crisp spaghetti squash create a dish that will be a hit for the whole family. This is my Italian Spaghetti Squash Casserole.

This recipe is a great base for others as well. Instead of ground beef, try using turkey and Mexican seasonings for a different flavor profile.

Italian Spaghetti Squash Bake

Italian Spaghetti Squash Casserole



  • 2 cups steamed spaghetti squash
  • 1 pound ground beef
  • 1 pound ground Italian sausage
  • 2 cups mozzarella cheese reserve 1 cup for topping
  • 2 oz sliced pepperoni approx 32 slices
  • 1/2 cup grated parmesan cheese
  • 1 1/2 cup tomato puree
  • 1/4 cup vegetable stock
  • 2 tbsp tomato paste
  • 1 tablespoon dried oregano
  • 1/2 tablespoon black pepper
  • 1/2 tablespoon dried basil
  • 1/2 tablespoon garlic powder
  • 1 teaspoon salt
  • pinch of crushed red pepper flakes
  • sweetener to taste I used 1 drop of liquid sucralose


  • In a large skillet, start browning ground beef and Italian sausage on medium-high heat, breaking meat into smaller pieces with wooden spoon. Drain excess fat.
  • Add in salt, pepper, garlic powder, red pepper flakes and stir until meat is cooked through.
  • Add in tomato paste and vegetable stock and mix until evenly incorporated.
  • Preheat oven to 375 degrees F.
  • Add in tomato puree, sweetener, dried oregano and basil. Let cook and stir occasionally for about 10 minutes.
  • Add in spaghetti squash and stir until incorporated.
  • In a medium sized casserole dish, spread out half of the mixture on the bottom of the pan.
  • On top, layer the mozzarella, parmesan and half of the pepperoni.
  • Add remaining squash and meat mixture on top.
  • Top with remaining pepperoni and reserved mozzarella.
  • Cover with foil and place into oven for 45 minutes.
  • Take out of oven and remove foil.
  • Change oven temperature to broil.
  • Place back into oven until cheese is bubbly and golden brown. Usually 2-5 minutes.
  • Remove from oven and let rest for at least 10 minutes.
  • Enjoy!

Tried this recipe?

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Another beautiful thing about this recipe is that it reheats and stores well. It’s also a great dish to prepare ahead, keep in the refrigerator and bake off when you’re ready to eat!

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What are you waiting for? Give my Italian Spaghetti Squash Casserole a try!

What’s your favorite make ahead meal that gets you through the week? Share below!

Posted Aug 28, 2016
by Dominic Geracia


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