Chicken Spaghetti Recipe

Comfort food that’s cozy, cheesy, and easy to make—this Chicken Spaghetti Recipe delivers a creamy, savory dinner the whole family will love. Tender chicken thighs, a lush cheddar sauce, and perfectly cooked spaghetti come together in a skillet-friendly dish that’s weeknight-friendly but special enough for guests. Below you’ll find a clear ingredient list, helpful notes, and step-by-step directions written for a smooth cooking experience.

Why you’ll love this Chicken Spaghetti Recipe

This version balances rich, melty cheddar with a light, savory sauce so the pasta never feels gummy. Using chicken thighs keeps the meat juicy and forgiving, and a bit of chili powder gives a subtle warm lift without heat overload. It’s an unfussy, make-ahead friendly dinner that reheats beautifully.

Ingredients

• ▢Salt and freshly ground black pepper
• ▢1 pound spaghetti (see note 1)
• ▢1 tablespoon olive oil
• ▢1 medium onion, peeled and chopped
• ▢1 medium red bell pepper, stemmed, seeded, and chopped
• ▢1 1/2 pounds boneless skinless chicken thighs, cut into 1-inch pieces (see note 2)
• ▢1 teaspoon chili powder
• ▢1/4 cup butter
• ▢1/4 cup all-purpose flour
• ▢2 cups milk
• ▢1 cup chicken broth
• ▢2 cups shredded cheddar cheese, divided
• ▢minced fresh parsley for garnish, optional

Notes

1. For texture, cook the spaghetti until just shy of al dente if you plan to finish it in the sauce; otherwise cook fully if serving immediately. 2. Choosing boneless skinless chicken thighs keeps the dish moist and forgiving if you’re short on time.

Equipment

• Large pot for boiling pasta
• Large skillet or sauté pan with lid
• Wooden spoon or spatula
• Measuring cups and spoons

Make-ahead and storage

You can prepare the sauce and chicken a day ahead, refrigerate, and reheat gently while you boil the pasta. Leftovers keep well in an airtight container in the refrigerator for 3–4 days; reheat on the stovetop over low heat, adding a splash of milk if the sauce has thickened too much.

Step-by-step directions

1. Bring a large pot of salted water to a rolling boil and cook 1 pound spaghetti according to package timing, aiming for just shy of al dente if you’ll finish it in the sauce. Drain and set aside, reserving a small cup of pasta water in case you need to loosen the sauce.
2. While the pasta cooks, heat 1 tablespoon olive oil in a large skillet over medium-high heat.
3. Season the 1 1/2 pounds boneless skinless chicken thighs (cut into 1-inch pieces) with salt, freshly ground black pepper, and 1 teaspoon chili powder. Add the seasoned chicken to the hot skillet and cook, stirring occasionally, until the pieces are browned and cooked through, about 6–8 minutes depending on size. Transfer the cooked chicken to a plate and keep warm.
4. In the same skillet over medium heat, add 1/4 cup butter. When the butter melts and begins to foam, add the chopped 1 medium onion and the chopped 1 medium red bell pepper. Sauté until the vegetables are softened and translucent, about 5 minutes, scraping up any browned bits from the skillet.
5. Sprinkle 1/4 cup all-purpose flour over the softened vegetables and stir continuously for 1–2 minutes to cook the raw flour taste. The mixture will form a roux that will thicken the sauce.
6. Slowly whisk in 2 cups milk and 1 cup chicken broth, bringing the mixture to a gentle simmer. Continue to whisk until the sauce is smooth and begins to thicken, about 3–5 minutes. Reduce the heat to low so the sauce maintains a gentle simmer without boiling vigorously.
7. Add 1 1/2 cups of the 2 cups shredded cheddar cheese to the sauce, stirring until the cheese melts fully and the sauce is glossy. Taste and season with additional salt and freshly ground black pepper as needed.
8. Return the cooked chicken to the skillet and stir to combine, coating the chicken in the cheese sauce. If the sauce feels too thick, add reserved pasta water a tablespoon at a time or a splash of milk until you reach your desired consistency.
9. Add the drained spaghetti to the skillet, tossing gently so each strand is coated in the cheesy sauce and the chicken is evenly distributed. If your skillet is too small, transfer everything to a large bowl and toss, then return to the skillet or an ovenproof dish.
10. Sprinkle the remaining 1/2 cup shredded cheddar cheese over the top, cover the skillet with a lid for a minute to let the cheese soften, then uncover and let the residual heat melt the cheese. Garnish with minced fresh parsley if desired, and serve immediately with extra cracked black pepper.

Tips for success

• Salt the pasta water generously; it’s your first chance to season the spaghetti. The water should taste slightly salty.
• Keep an eye on the roux when you add the flour—stir constantly so it cooks evenly and doesn’t clump.
• If you prefer a smoother sauce, grate your own cheddar from a block rather than using pre-shredded cheese, which sometimes contains anti-caking agents.
• For a lighter version, use low-fat milk, but keep the cheddar quantity the same for flavor.

Serving suggestions

Serve this Chicken Spaghetti Recipe with a crisp green salad, crusty bread, or a side of roasted vegetables to round out the meal. A squeeze of lemon on the side brightens the cheese sauce for those who like a touch of acidity.

Final notes

This Chicken Spaghetti Recipe is straightforward, forgiving, and satisfying. The ingredient list is simple, and the method focuses on layering flavor: searing the chicken, softening the vegetables, building a roux, and finishing with melting cheese for a creamy finish. Make it as written or customize by stirring in a handful of spinach or a cup of frozen peas in the last few minutes for extra color and nutrients.

Enjoy this warm, cheesy dinner tonight—it’s a weeknight winner with comfort-food charm.