Creamy baked chicken spaghetti casserole with melted cheese and a fork lifting a strand of pasta

Chicken Spaghetti Recipe: Creamy, Cheesy, and Ready in 45 Minutes

This chicken spaghetti recipe combines tender shredded chicken, al dente spaghetti, and a creamy cheese sauce in one baked casserole that takes about 45 minutes from start to finish. You cook the chicken, stir together a simple sauce, toss everything with the pasta, and bake until bubbly and golden.

I first made this on a rainy Tuesday when I had half a rotisserie chicken, a box of spaghetti, and two kids who had declared everything in the fridge “boring.” The pan came out of the oven bubbling at the edges, and the leftovers vanished before I could pack lunches. It has been on our weeknight rotation ever since.

Recipe Snapshot

  • Prep time: 15 minutes
  • Cook time: 30 minutes
  • Total time: 45 minutes
  • Servings: 6
  • Difficulty: Easy

Why You’ll Love This Recipe

  • It’s a true one-pan comfort meal. Pasta, chicken, vegetables, and sauce all end up in a single baking dish, so cleanup is easy.
  • It works with leftovers. Rotisserie chicken or leftover roast chicken saves you at least 20 minutes.
  • The sauce stays creamy. A little cream cheese and the starchy pasta water keep it silky, even after baking.
  • It feeds a crowd and reheats well. Make it Sunday, and you have lunches for Monday.
  • It’s flexible. Swap the cheese, add spinach, or change the topping without wrecking the dish. I’ll show you what works.

Substitutions That Work

  • No cream of chicken soup?
  • Use a quick homemade version: whisk 2 tablespoons melted butter with 2 tablespoons flour, then slowly add 1 cup milk and cook until thick.
  • Want it lighter?
  • Use Greek yogurt for the sour cream and low-fat cream cheese. The sauce will be a bit less rich but still good.
  • Whole wheat pasta works nicely and adds fiber. The Harvard T.H. Chan School of Public Health has a helpful overview of why whole grains are worth considering.
  • Dairy-free?
  • Use a plant-based cream cheese and sour cream, and skip the Parmesan or use a dairy-free alternative.
 Ingredients for chicken spaghetti arranged in bowls including shredded chicken, cheeses, spaghetti, and vegetables

See more : Baked Chicken Recipes

How to Make Chicken Spaghetti

Here is the step-by-step method I use every time I make this chicken spaghetti recipe. Preheat the oven first, since it takes the longest to come up to temperature.

  1. Heat the oven. Preheat to 375°F (190°C) and lightly grease a 9×13-inch baking dish.
  2. Cook the chicken if needed. If you’re starting with raw chicken, simmer it in salted water or broth for 15 to 20 minutes until it reaches an internal temperature of 165°F, which is the safe minimum according to the USDA Food Safety and Inspection Service. Shred it with two forks.
  3. Boil the spaghetti. Cook in well-salted water for 2 minutes less than the package says. It will finish cooking in the oven, and this is what keeps it from turning mushy.
  4. Save some pasta water. Scoop out 1/2 cup before draining. You may need it to loosen the sauce.
  5. Sauté the vegetables. Heat the olive oil in a large skillet over medium heat. Cook the onion and bell pepper for 5 minutes until soft, then add the garlic for 30 seconds until fragrant.
  6. Build the sauce. Lower the heat and stir in the cream of chicken soup, cream cheese, broth, sour cream, garlic powder, paprika, pepper, and salt. Whisk until the cream cheese melts and the sauce looks smooth.
  7. Add the cheese. Stir in 1 cup of the cheddar and the Parmesan. The sauce should be thick but pourable.
  8. Combine everything. In a large bowl, toss the drained spaghetti, shredded chicken, peas, and sauce together. If it looks tight, add a splash of the reserved pasta water.
  9. Assemble the casserole. Pour the mixture into the baking dish and spread it evenly. Sprinkle with the remaining cheddar and the mozzarella.
  10. Bake. Bake uncovered for 20 to 25 minutes until the edges bubble and the top turns golden in spots.
  11. Rest and serve. Let it sit for 5 minutes so the sauce settles, then top with parsley.
Mixing creamy sauce with spaghetti and shredded chicken for a baked chicken spaghetti casserole

See more : Sour Chicken Recipe

Can You Use Rotisserie Chicken?

Yes, and it’s my favorite shortcut. A standard rotisserie chicken gives you about 3 cups of shredded meat, plus it’s already seasoned, so it adds flavor to the sauce. Pull the meat while it’s still warm for the easiest shredding.

Should You Rinse the Spaghetti?

No. Rinsing washes away the surface starch that helps the creamy sauce cling to each strand. Just drain it and move quickly to the mixing step.

Pro Tips for the Best Chicken Spaghetti

  • Undercook the pasta. This is the number one fix for mushy chicken spaghetti. The noodles keep absorbing sauce in the oven, so they should still have a firm bite when you drain them.
  • Shred your own cheese. Pre-shredded cheese is coated with anti-caking starch, which can make the sauce slightly grainy. A box grater takes two minutes and gives a smoother melt.
  • Cover loosely if the top browns too fast. Every oven runs differently. If the cheese darkens before the center bubbles, tent a sheet of foil on top for the last 10 minutes.
  • Store it in portions. Refrigerate in airtight containers for up to 4 days. To freeze, assemble the casserole without baking, wrap tightly, and freeze for up to 3 months. Thaw overnight in the fridge before baking.
  • Reheat with a splash of liquid. Add a tablespoon of milk or broth per serving, cover, and microwave in 60-second bursts. This brings back the creaminess.
Close-up of a plate of creamy chicken spaghetti topped with melted cheese and fresh parsley

See more : Sour Chicken Recipe

Chicken Spaghetti FAQ

What is chicken spaghetti made of?

It’s made of cooked spaghetti, shredded chicken, and a creamy cheese sauce, usually built from cream of chicken soup or a similar base. Vegetables like onion, bell pepper, and peas are common additions. Everything is baked with a layer of melted cheese on top.

Can I make this chicken spaghetti recipe ahead of time?

Yes. Assemble the casserole, cover it, and refrigerate for up to 24 hours before baking. Add 5 to 10 minutes to the bake time since it starts cold.

Why is my chicken spaghetti dry?

Usually the pasta absorbed too much of the sauce, or it baked too long. Undercook the spaghetti slightly, keep the sauce a bit loose before baking, and pull the dish when the edges just start to bubble.

Can I use chicken breasts or thighs?

Either works. Thighs stay juicier and are more forgiving, while breasts are leaner and cook quickly. Poach them gently rather than boiling hard, which can make the meat stringy.

What goes well with chicken spaghetti?

A crisp green salad with a tangy vinaigrette balances the richness. Garlic bread, roasted broccoli, or steamed green beans are also good choices for rounding out the meal.

Creamy Baked Chicken Spaghetti

Tender shredded chicken, al dente spaghetti, and a silky cheese sauce baked until bubbly. A 45-minute weeknight dinner that reheats well.

Prep15 min
Cook30 min
Total45 min
Servings6
DifficultyEasy

Ingredients

Chicken and pasta

Creamy sauce

Topping

Instructions

  1. Preheat the oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish.
  2. If starting with raw chicken, simmer it in salted water or broth for 15 to 20 minutes until it reaches 165°F, then shred it with two forks.
  3. Boil the spaghetti in well-salted water for 2 minutes less than the package directions.
  4. Scoop out 1/2 cup of pasta water, then drain the spaghetti.
  5. Heat the olive oil in a large skillet over medium heat. Cook the onion and bell pepper for 5 minutes, then add the garlic for 30 seconds.
  6. Lower the heat and stir in the cream of chicken soup, cream cheese, broth, sour cream, garlic powder, paprika, pepper, and salt until smooth.
  7. Stir in 1 cup of the cheddar and the Parmesan.
  8. In a large bowl, toss the spaghetti, shredded chicken, peas, and sauce together. Add a splash of pasta water if it looks tight.
  9. Pour the mixture into the baking dish, spread evenly, and top with the remaining cheddar and the mozzarella.
  10. Bake uncovered for 20 to 25 minutes until the edges bubble and the top is golden in spots.
  11. Rest for 5 minutes, then top with parsley and serve.

Notes

  • Undercook the pasta slightly so it does not turn mushy in the oven.
  • Refrigerate leftovers in an airtight container for up to 4 days.
  • To freeze, assemble without baking, wrap tightly, and freeze for up to 3 months. Thaw overnight in the fridge before baking.
  • Reheat with a splash of milk or broth to bring back the creaminess.

Nutrition (per serving)

Calories: 650 | Protein: 40 g | Carbohydrates: 52 g | Fat: 28 g Nutrition values are estimates and vary by brand and substitutions.

Your Turn to Try It

I hope this chicken spaghetti recipe earns a spot in your rotation the way it did in mine. If you make it, leave a comment and tell me what you changed. And if you want to come back to it later, pin it to your dinner board on Pinterest so it’s easy to find on your next busy night.

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