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Quick One-Pot Chicken Spaghetti Recipe

4.4 from 76 reviews

This Quick One-Pot Chicken Spaghetti is a comforting, cheesy casserole that combines tender rotisserie chicken, a creamy tomato-spiced sauce, and perfectly cooked spaghetti. Ready in under an hour, it’s an ideal weeknight dinner that requires minimal fuss but delivers maximum flavor and satisfying texture.

Ingredients

Scale

Pasta

  • 12 oz spaghetti

Sauce & Seasoning

  • 4 tbsp unsalted butter
  • ½ cup onion, chopped
  • 2 garlic cloves, minced
  • 4 tbsp all-purpose flour
  • 2 cups low-sodium chicken broth
  • 1 tsp dry parsley
  • ½ tsp dry oregano
  • ½ tsp dry basil
  • ½ tsp red pepper flakes
  • ¼ tsp salt
  • Freshly ground black pepper to taste

Cheese

  • 1 cup cheddar cheese, freshly shredded and divided
  • 1 cup mozzarella cheese, freshly shredded and divided

Other

  • 1 cup half and half
  • 1 (10 oz) can diced tomatoes with green chiles
  • 3 cups shredded leftover rotisserie chicken

Instructions

  1. Cook the Spaghetti: Bring a large pot of salted water to a boil. Add the spaghetti and cook according to the package instructions until al dente. Drain and set aside.
  2. Preheat the Oven: Set your oven to 350°F (175°C) to prepare for baking the casserole later.
  3. Make the Roux and Sauce Base: In a large skillet over medium-high heat, melt the butter. Add the chopped onion and minced garlic, cooking until translucent, approximately 2 minutes. Sprinkle the flour over the butter mixture and whisk continuously for 2-3 minutes until the mixture turns golden brown.
  4. Add Broth and Seasonings: Gradually whisk in the chicken broth to avoid lumps. Continue cooking and stirring for about 3 minutes until the sauce thickens. Season with salt, pepper, oregano, basil, parsley, and red pepper flakes.
  5. Melt the Cheese into the Sauce: Stir in half of the shredded cheddar and mozzarella cheeses, allowing them to melt completely into the sauce.
  6. Combine Ingredients: Gently fold in the cooked spaghetti, half and half, shredded chicken, and diced tomatoes with green chiles into the sauce mixture. Mix carefully to prevent breaking the pasta.
  7. Prepare the Casserole: Grease a 9×13-inch casserole dish. Pour the spaghetti mixture evenly into the dish and spread it out. Sprinkle the remaining cheddar and mozzarella cheeses on top.
  8. Bake: Place the casserole in the preheated oven and bake for 20-25 minutes, or until the cheese on top is melted, bubbly, and lightly golden.

Notes

  • Use leftover rotisserie chicken to save time and add flavor.
  • Ensure the spaghetti is cooked al dente to avoid mushiness after baking.
  • If you prefer a spicier dish, increase the red pepper flakes to taste.
  • Substitute half and half with heavy cream for a richer dish.
  • Leftovers store well in the refrigerator for up to 3 days and reheat gently to maintain creaminess.

Keywords: chicken spaghetti, one pot chicken pasta, cheesy chicken casserole, quick chicken dinner, rotisserie chicken recipe