Ingredients
Method
Cook the Chicken
- Cut each chicken breast in half horizontally to make thinner cutlets.
- Pat the cutlets dry with paper towels and season evenly with Italian seasoning, salt, and pepper.
- Heat the olive oil in a large skillet over medium-high heat.
- Sear the chicken for 5 to 6 minutes per side, until golden and cooked through.
- Transfer the chicken to a plate and let rest for a few minutes, then dice into bite-size pieces.
Make the Sauce
- Reduce the skillet heat to medium-low and melt the butter, scraping up any browned bits from the bottom.
- Add the diced onion and cook for about 4 minutes, until soft and translucent.
- Stir in the minced garlic and cook for 1 minute, until fragrant.
- Sprinkle the flour over the onions and stir to coat; cook for 2 minutes, stirring often.
- Gradually pour in the chicken broth while stirring constantly, until the mixture is smooth.
- Slowly add the milk, whisking constantly until fully combined.
- Add the softened cream cheese and stir until melted and the sauce is silky.
- Turn the heat to low and stir in the shredded Colby cheese until completely melted.
- Stir in the tomato sauce until evenly blended.
Cook the Pasta
- Bring a large pot of generously salted water to a boil.
- Add the thin spaghetti and cook according to package directions until al dente.
- Drain the spaghetti well and set aside.
Assemble
- Add the diced chicken and cooked spaghetti to the sauce in the skillet.
- Toss gently until every strand of spaghetti and piece of chicken are coated in the creamy sauce.
- Garnish with chopped parsley and serve warm.
Nutrition
Notes
Shred your own Colby cheese from a block; bagged pre-shredded cheese won't melt as smoothly.
To make this a baked casserole, spread the assembled mixture in a buttered 9x13-inch dish, top with 1 cup shredded mozzarella, and bake at 400 F for 15 minutes, then broil at 425 F for 2 minutes until browned.
Not a Colby fan? Swap in sharp cheddar, Monterey Jack, or a Mexican cheese blend for a different flavor.
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat with a splash of milk to restore the creamy texture.
Make ahead by preparing the sauce and cooked chicken up to 2 days ahead; cook the pasta fresh just before serving.
Add a pinch of red pepper flakes or a squeeze of Meyer lemon right before serving for a bright California twist.
