Learn how to make The Best Chicken Spaghetti! This easy casserole is delicious, and it's perfect for a weeknight dinner! This recipe combines pasta and shredded chicken along with lots of vegetables baked in a creamy sauce for lots of flavor and texture!
Preheat the oven to 350°F. Lightly grease a 13x9-inch baking dish with nonstick cooking spray.
Cook pasta al dente. Drain well and set aside
In a large pot over medium-high heat, melt butter and cook onions, garlic, and bell pepper until tender. about 5-6 minutes. Then, add Italian seasoning, paprika, black pepper, salt, cream of mushroom soup, and 1¼ cups of cheese. Cook until the cheese is completely melted. Remove from heat.
Add spaghetti, sour cream, Rotel tomatoes, and chicken to the sauce. Stir until well combined.
Pour into prepared baking dish and top with remaining cheese. Bake for 25-30 minutes or until cheese is melted and casserole is bubbling.
Notes
To make this dish more kid-friendly or spice free. You can ditch the Rotel diced tomatoes with diced green chilies and substitute them with diced tomatoes.
You can use any type of precooked chicken, such as a rotisserie chicken or cooked chicken breasts. I cooked 2 chicken breasts by seasoning them with ½ tsp Italian season, ½ tsp paprika, ½ tsp black pepper, and ½ tsp onion powder. Melt 2 tbsp of butter in a large skillet over medium-high heat. Cook for 5-7 minutes, turning halfway through. Let rest for 5 minutes, then cube-cooked chicken.
*All nutrition information provided is automatically calculated and is an estimate and will vary based on ingredients, brands, and changes in cooking methods listed in the recipe. If you need exact numbers on your ingredients, I would recommend calculating them with your prefered nutrition calculator.