Spaghetti Squash Chicken Casserole

Name: Spaghetti Squash Chicken Casserole
Prep time: 15 min
Cook time: 1 h 45 min
Total time: 2 h
Cuisine: American
Ingredients: 2 spaghetti squash; 1 pound boneless, skinless chicken breast; 1 tablespoon olive oil; ¾ teaspoon kosher salt; ½ teaspoon freshly ground black pepper; 2 tablespoons neutral oil; 1 small zucchini; 1 medium onion (diced); 1 bell pepper (diced); ½ teaspoon kosher salt; 1 pint grape or cherry tomatoes (halved); 4 cloves garlic (minced); 1 ½ tablespoons dried Italian seasoning; ¼ teaspoon red pepper flakes; ¼ cup chicken stock; 1 cup frozen peas; 1 ½ cups shredded mozzarella cheese; ½ cup grated Parmesan cheese

Instructions

Prep:15minCook:1h 45min

Instead of stuffing each spaghetti squash with a filling, this casserole incorporates everything into one easy baking dish. A combination of spaghetti squash, tomatoes, zucchini, and chicken are all mixed together and topped with cheese. Once baked, it’s the perfect, hearty meal for a weeknight or special occasion!

Updated at: Sat, 31 Oct 2026 00:08:18 GMT