This Spaghetti Squash Casserole with chicken and shredded cheese is the perfect weeknight meal. Made with roasted spaghetti squash, this casserole is easy to make, low carb, gluten-free, and I’ll bet that everyone in your family will be reaching for seconds!
Halve the spaghetti squash with a sharp knife and using a spoon, remove seeds.
Pour over olive oil on the inside of the spaghetti squash and season with salt and black pepper to taste.
Place spaghetti squash cut-side down on the baking sheet and roast in oven on middle rack for about 40-50 minutes. The time will depend on the size of the spaghetti squash.
Remove from oven and let cool slightly.
Using a fork, gently remove spaghetti squash strands from the squash and set aside.
For the Sauce
In a cast iron skillet 10”, heat olive oil over medium-high heat.
Add onions and garlic and cook for about 3 minutes.
Add cooked chicken and tomato sauce to the skillet, mix everything together to combine and cook for 1 minute. Add the spaghetti squash strands and mix all to combine.
In a casserole dish, place the spaghetti squash/chicken/tomato sauce mixture and top with mozzarella cheese. Bake for 10 minutes or until golden and bubbly.
Notes
If when you run your fork over the squash and you don't get "noodle strands," then let the squash roast longer.