Chicken Spaghetti Casserole

This creamy chicken spaghetti casserole is the kind of cozy, family-style dinner that everyone looks forward to. Tender spaghetti is tossed with shredded chicken, veggies, and a rich, creamy sauce, then baked under a layer of melted cheddar cheese. It’s perfect for busy weeknights, potlucks, or any time you need a comforting, crowd-pleasing meal. You can assemble it ahead, keep it in the fridge, and just pop it in the oven when you’re ready to bake. It also travels really well, making it great for sharing with friends or neighbors who could use a home-cooked dish.

Ingredients

• 3 C. Shredded chicken
• 8 oz. Spaghetti noodles cooked
• ⅔ C. Chopped celery
• 1 C. Chopped onions
• 1 C. Chopped bell pepper
• 1 C. Chicken broth
• 2 Cans Cream of chicken soup
• 1 C. Shredded cheddar cheese
• Salt and pepper to taste

Directions

1. Preheat the oven to 350 degrees.
2. Mix together the shredded chicken, cooked spaghetti noodles, celery, onions and peppers in a large mixing bowl.
3. Combine the broth, cream of chicken soups and salt and pepper to taste in a separate bowl.
4. Pour the soup mixture over the chicken mixture and toss to combine.
5. Layer the mixture into a 9×13 baking dish and top with the shredded cheddar cheese.
6. Cover with aluminum foil and bake for 35 minutes. Uncover and bake for 10 minutes more.

Prep Time: 20 minutes | Cooking Time: 45 minutes | Total Time: 65 minutes
Kcal: 520 kcal | Servings: 8

Tips

For extra flavor and texture, you can use a mix of colored bell peppers and slightly undercook the spaghetti by 1–2 minutes so it doesn’t get too soft while baking.

If you want to prep ahead, assemble the casserole, cover tightly, and refrigerate for up to 24 hours; add 5–10 extra minutes of baking time if going straight from the fridge to the oven, and store leftovers in an airtight container in the fridge for up to 3 days.

FAQ

Can I use rotisserie chicken for this recipe?
Yes, rotisserie chicken works perfectly and saves time—just remove the skin and shred the meat.

Can I freeze chicken spaghetti casserole?
Yes, assemble the casserole in a freezer-safe dish, wrap well, and freeze for up to 3 months; thaw overnight in the fridge before baking.

What kind of cheese works best?
Sharp cheddar gives great flavor, but you can mix in Monterey Jack or mozzarella for extra creaminess and stretch.

Do I have to cook the spaghetti before baking?
Yes, the spaghetti should be cooked before mixing with the other ingredients; otherwise, it won’t soften properly in the oven.