One Pot Chicken Spaghetti

This One Pot Chicken Spaghetti is exactly the cozy, weeknight-friendly dinner you crave: tender chicken, a creamy tomatoey sauce, and delicate angel hair pasta all cooked in a single skillet. It’s homey, fast, and hits that comfort-food sweet spot without creating a sink full of dishes. If you love simple comfort meals that pack big flavor, this recipe will become a regular in your dinner rotation.

Why you’ll love this version

This take on One Pot Chicken Spaghetti focuses on efficient cooking and balanced flavors. The chicken is seared to lock in juiciness, a savory roux-like base creates a creamy sauce without being heavy, and a canned mild diced tomato mix adds a bright, slightly spicy tomato note without overwhelming the dish. Reduced-fat cream cheese lends silkiness while the Mexican blend of cheeses brings melting richness. Using angel hair pasta means it cooks quickly and soaks up sauce in just the right way.

Ingredients

• 1 pound boneless skinless chicken breasts
• 2 Tablespoons olive oil
• ¼ cup diced yellow onion
• 3 cloves garlic
• ¼ cup all-purpose flour
• 2 cups 2% milk
• 2 cups chicken broth
• ½ teaspoon salt
• ¼ teaspoon black pepper
• 10 ounce can mild Rotel
• 4 ounces reduced fat cream cheese
• 8 ounces angel hair pasta
• 1 cup shredded Mexican cheese
• 1 tomato, diced and seeded (optional)

Notes before you start

Prep your ingredients first: dice the onion, mince the garlic, and cube the chicken so everything moves smoothly at the stove. The angel hair will cook quickly, so keep your heat moderate and stir occasionally to prevent clumping. If you prefer a little more tomato brightness, the optional diced and seeded tomato is a fresh finish that complements the creamy sauce.

Kitchen equipment

• Large heavy skillet or wide sauté pan with a lid (12-inch preferred)
• Wooden spoon or heatproof spatula
• Measuring cups and spoons
• Sharp knife and cutting board

Step-by-step directions

1. Prepare the chicken: Pat the 1 pound of boneless skinless chicken breasts dry with paper towels and cut them into 1-inch cubes. Set aside.
2. Heat the pan and brown the chicken: Place a large skillet over medium-high heat and add 2 Tablespoons olive oil. When the oil shimmers, add the cubed chicken in a single layer. Cook without moving for 2 minutes so the pieces develop a light sear, then stir and cook until the chicken is mostly cooked through, about 3–4 minutes more. Remove the chicken from the pan and set it aside on a plate; you’ll finish cooking it later in the sauce.
3. Sauté aromatics: Reduce the heat to medium. Add the ¼ cup diced yellow onion to the same skillet and sauté for 2–3 minutes, stirring occasionally, until the onion is softened and translucent. Add the 3 cloves garlic (minced) and cook for about 30 seconds until fragrant, taking care not to let the garlic brown.
4. Create the base with flour: Sprinkle the ¼ cup all-purpose flour over the softened onions and garlic. Stir constantly for 1–2 minutes so the flour cooks and forms a light paste with the oil and pan drippings. This step helps thicken the sauce later.
5. Add liquids and season: Slowly whisk in 2 cups 2% milk and 2 cups chicken broth, scraping any browned bits from the bottom of the pan. Continue whisking until the mixture is smooth and begins to thicken slightly. Stir in ½ teaspoon salt and ¼ teaspoon black pepper to season the sauce.
6. Return chicken and add tomatoes: Place the seared chicken back into the skillet. Pour in the 10 ounce can of mild Rotel (undrained), stirring to combine. Bring the mixture to a gentle simmer over medium-low heat.
7. Melt the cream cheese into the sauce: Cut the 4 ounces reduced fat cream cheese into chunks and add them to the simmering sauce. Stir gently until the cream cheese melts completely and the sauce becomes glossy and smooth. If the sauce feels too thick, allow it to simmer a minute longer while stirring to loosen it; if it’s too thin, simmer a bit more to reduce.
8. Add the pasta and cook: Break the 8 ounces angel hair pasta in half if needed so it fits in the pan. Add the pasta to the skillet, pushing it gently beneath the liquid so it’s mostly submerged. Cover the skillet with a lid and simmer on low for 6–8 minutes, stirring every 2 minutes to prevent sticking. Angel hair cooks quickly; check for doneness at 6 minutes. The pasta should be tender and have absorbed most of the sauce.
9. Finish with cheese and tomato: Once the pasta is cooked and the chicken is cooked through, reduce the heat to low. Sprinkle the 1 cup shredded Mexican cheese over the top and gently fold it into the pasta until melted and evenly distributed. If you like a fresh note, stir in the optional 1 diced and seeded tomato at this stage.
10. Adjust seasoning and serve: Taste and add a pinch more salt or black pepper if needed. Spoon the One Pot Chicken Spaghetti into bowls and serve hot. Leftovers store well in an airtight container in the refrigerator for up to 3 days.

Tip and variations

• Make it spicier: Use medium or hot diced tomatoes instead of the mild variety for a kick.
• Swap the pasta: If angel hair is unavailable, thin spaghetti or vermicelli will work, but increase the simmer time slightly and stir more often to prevent clumping.
• Vegetable boost: Stir in a cup of baby spinach or frozen peas in the last 2 minutes for color and added nutrition.
• Extra creamy: For an even silkier texture, finish with a splash of heavy cream or a tablespoon of butter right before serving.

Make-ahead and storage

You can assemble this dish up to the point of adding the pasta and refrigerate the sauce and cooked chicken in an airtight container for up to 24 hours. When ready to eat, reheat the sauce gently in the skillet, add the pasta and proceed with the cooking steps. Store leftovers in the refrigerator for up to 3 days and gently reheat on the stovetop over low heat, adding a splash of milk or broth to loosen the sauce if it has thickened.

Nutrition and serving suggestions

This One Pot Chicken Spaghetti serves about 4 people as a main course. Pair it with a crisp green salad and a lemony vinaigrette to cut through the richness, or serve with steamed vegetables for a simple weeknight plate. Garnish with chopped fresh cilantro or parsley for a bright finish.

Why this recipe works

Cooking the chicken first builds savory depth from the browning, while sautéing the onion and garlic adds aromatic complexity. The flour cooks briefly to avoid a raw taste, then the milk and broth form a saucy base that carries the Rotel’s tomato and pepper flavors. The cream cheese rounds out the acidity and brings creaminess without an overly heavy mouthfeel. Angel hair pasta has just the right texture to absorb sauce quickly so each bite is saucy and satisfying.

Final thoughts

This One Pot Chicken Spaghetti is a practical, satisfying dinner that you can pull together any night of the week. It’s forgiving, flavorful, and comes together in about 30 minutes from start to finish. Whether you keep it simple with the original ingredients or customize it with extra vegetables and spices, this recipe delivers comforting, well-balanced pasta perfect for busy evenings.