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!
– 16 oz spaghetti (cooked) – 1 medium yellow onion (diced) – 2 cloves garlic (minced) – ½ cup green bell pepper (diced) – 3 tbsp butter – 1 tsp Italian seasoning – 1 tsp paprika – 1 tsp ground black pepper – ½ tsp salt – 2 (14 oz) cans cream of mushroom soup – ½ cup sour cream – 2½ cups cheddar cheese (shredded and divided) – 1 (14 oz) rotel tomatoes with green chilies – 2½ cups chicken (cooked and shredded)