

Chicken Spaghetti – A Family Favourite!
Some dinners are just meant to bring everyone to the table, and this creamy chicken spaghetti is definitely one of them.
Think tender shredded chicken, spaghetti coated in a rich, cheesy sauce, and a golden layer of melted cheddar on top. It’s hearty, comforting, and wonderfully easy to put together.
And the best part? You don’t need a complicated list of ingredients or hours in the kitchen to make it happen.
This chicken spaghetti casserole is made with a handful of everyday ingredients, including cream of mushroom soup, Velveeta, cream cheese, and Ro*Tel tomatoes. Everything comes together in one creamy mixture before being transferred to a baking dish and finished in the oven.
It’s a terrific make-ahead dinner, feeds a crowd, and makes equally delicious leftovers. Honestly, it’s hard to go wrong with a big dish of cheesy pasta!
Why You’ll Love This Chicken Spaghetti
There are plenty of reasons to keep this recipe in your regular dinner rotation.
- Creamy, cheesy goodness: Velveeta and cream cheese melt into the mushroom soup to create a wonderfully smooth sauce that coats every strand of spaghetti.
- Easy family dinner: Familiar ingredients and comforting flavours make this a great meal for the whole family.
- Perfect for busy nights: Cook the chicken and pasta, stir everything together, and let the oven do the finishing work.
- Feeds a crowd: This recipe makes 8 generous servings, making it ideal for family gatherings, potlucks, or a busy week when you want leftovers.
- Make-ahead friendly: Assemble the casserole in advance and refrigerate or freeze it until you’re ready to bake.
Ingredients You’ll Need
Here’s what goes into this creamy chicken spaghetti. Nothing complicated, just simple ingredients that come together to make one seriously comforting dinner.
Chicken breasts – You’ll need 2 pounds of boneless, skinless chicken breasts. Cook them gently until tender, then shred using two forks. This gives you lovely bite-sized pieces throughout the casserole.
Spaghetti – One 16-ounce package. Cook it just to al dente because the pasta will continue cooking in the oven. Nobody wants mushy spaghetti!
Ro*Tel tomatoes – One 10-ounce can, including the liquid. The tomatoes and green chiles add flavour and a little kick to balance the richness of the cheese sauce.
Cream of mushroom soup – Two 10.5-ounce cans form the creamy base of the sauce.
Velveeta cheese – One 16-ounce package. This is what gives the sauce its wonderfully smooth, melty texture.
Cream cheese – Four ounces add extra richness and help make the sauce thick and creamy.
Garlic powder – One teaspoon adds savoury flavour without overpowering the other ingredients.
Onion powder – One teaspoon brings another layer of flavour to the sauce.
Sharp cheddar cheese – One cup, shredded, for that delicious cheesy topping.
How to Make Chicken Spaghetti
This recipe is wonderfully straightforward. Cook the chicken, prepare the pasta, make the sauce, and bring everything together before baking.
Step 1: Cook and Shred the Chicken
Place the chicken breasts in a large pot and add enough water to barely cover them.
Cook over medium-low heat until the chicken is completely cooked through. Keep the water at a gentle simmer rather than allowing it to boil vigorously. This helps the chicken stay tender.
Remove the chicken and let it cool until you can comfortably handle it.
Using two forks, shred the chicken into bite-sized pieces. Set aside.
Step 2: Prepare the Baking Dish
Preheat your oven to 350°F (175°C).
Lightly coat a 13 × 9-inch baking dish with nonstick cooking spray.
A little preparation now makes transferring the casserole much easier later!
Step 3: Cook the Spaghetti
Bring a large pot of salted water to a boil and cook the spaghetti according to the package instructions.
Here’s the important part: cook it just to al dente.
The spaghetti will spend another 20–30 minutes in the oven, so it doesn’t need to be completely soft at this stage. Drain well and set aside.
Step 4: Make the Creamy Cheese Sauce
In a large pot, combine the Ro*Tel tomatoes with their liquid, cream of mushroom soup, Velveeta, and cream cheese.
Warm everything over low heat, stirring regularly until the cheeses have melted and the mixture is smooth.
Don’t rush this step by turning up the heat. Gentle heat is all you need to melt the cheese without scorching the sauce.
Once everything is beautifully creamy, stir in the garlic powder and onion powder.
Add the shredded chicken and cooked spaghetti.
Toss everything together until the chicken and pasta are evenly coated in that rich, cheesy sauce. You want plenty of sauce clinging to every strand!
Step 5: Assemble and Bake
Transfer the chicken spaghetti mixture to your prepared baking dish.
Spread it out evenly, then sprinkle the shredded sharp cheddar over the top.
Bake for 20–30 minutes, or until the casserole is heated all the way through and the cheddar has melted.
That’s it!
Remove from the oven and let it sit for a few minutes before serving. Then scoop generous portions onto plates and enjoy while it’s hot and creamy.

My Tips for the Best Chicken Spaghetti
A few little details make a big difference when making this casserole.
- Keep the chicken cooking gently. Avoid a rolling boil. A gentle simmer helps prevent the chicken from becoming tough and dry.
- Don’t overcook the spaghetti. Al dente is exactly what you’re after. The pasta will continue absorbing sauce and cooking in the oven.
- Melt the cheese slowly. Keep the sauce over low heat and stir regularly. This helps the Velveeta and cream cheese melt smoothly.
- Shred the chicken while it’s still slightly warm. It’s much easier to pull apart with two forks before it becomes completely cold.
- Don’t overbake. The casserole is ready when it’s heated through and the cheese topping has melted. There’s no need to leave it in the oven longer than necessary.
- Be careful with cold baking dishes. If you’ve assembled the casserole in advance and refrigerated it, allow a cold glass or ceramic dish to warm gradually before putting it into a hot oven.
Easy Chicken Spaghetti Variations
The original recipe is delicious just as it is, but there are a few ways to change things up when you feel like experimenting.
Use rotisserie chicken: Short on time? Shredded rotisserie chicken is a terrific shortcut. Simply stir it into the sauce and skip cooking the chicken yourself.
Make it extra cheesy: Add a little more shredded cheddar over the top before baking. Because sometimes more cheese is exactly what dinner needs!
Add a little heat: Use a spicier variety of Ro*Tel tomatoes if you enjoy a bit more kick.
Add vegetables: Cooked mushrooms, spinach, or broccoli can be stirred into the mixture for extra flavour and variety.
Give it a smoky twist: A small sprinkle of smoked paprika adds a lovely smoky note to the creamy sauce.
These are optional ideas rather than ingredients in the original recipe, so feel free to keep things simple.
Make Ahead, Storage and Reheating
One of the things I love about casseroles like this is how convenient they are when life gets busy.
Make ahead: Prepare the casserole as directed, transfer it to the baking dish, and cover tightly. Store it in the refrigerator until you’re ready to bake.
Refrigerating leftovers: Cover any leftover chicken spaghetti and store it in the refrigerator for a few days. Reheat until piping hot throughout.
Freezing: You can freeze this casserole before baking. Assemble everything as directed, but leave off the baking step. Wrap the dish tightly and freeze.
Reheating from frozen: Thaw overnight in the refrigerator. Before baking, allow the dish to sit out briefly so it isn’t refrigerator-cold when it goes into the oven. Always follow safe food-handling practices, and never transfer a cold glass or ceramic dish directly into a hot oven.
What to Serve with Chicken Spaghetti
This casserole is hearty enough to make a meal on its own, but a few simple sides make dinner even better.
- Green salad: A crisp salad with a light dressing is a lovely contrast to the rich, creamy pasta.
- Steamed broccoli: Simple, fresh, and an easy way to add some vegetables to the plate.
- Green beans: Lightly steamed or sautéed green beans make a delicious side.
- Garlic bread: Always a good idea when there’s plenty of creamy sauce to enjoy!
My pick? A fresh green salad and warm garlic bread. You get something crisp and refreshing alongside all that cheesy goodness.
Frequently Asked Questions
Can I use rotisserie chicken instead of cooking chicken breasts?
Absolutely! This is a great way to save time. Simply shred your cooked rotisserie chicken and stir it into the cheese sauce before adding the spaghetti.
How do I keep the spaghetti from getting mushy?
The trick is to cook it just to al dente, or even slightly under. Remember, it will continue cooking in the oven, so starting with slightly firm pasta gives you the best texture.
What if my cheese sauce is too thick?
No problem! Stir in a little milk or chicken broth until the sauce reaches the consistency you like. Add it gradually so you don’t thin it out too much.
Can I prepare chicken spaghetti ahead of time?
Yes! Assemble the casserole, cover it, and refrigerate until you’re ready to bake. Allow the baking dish to warm gradually before placing it in the oven, particularly if you’re using glass or ceramic cookware.
How can I add more flavour?
The original recipe already has plenty of comforting flavour from the tomatoes, mushroom soup, and cheeses. If you’d like to experiment, a little smoked paprika, Worcestershire sauce, or some sautéed mushrooms can add another layer of flavour.


The Perfect Chicken Spaghetti
Notes
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2 pounds boneless skinless chicken breasts
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1 (16-ounce) package spaghetti
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1 (10-ounce) can Ro*Tel Tomatoes
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2 (10.5-ounce) cans cream of mushroom soup
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1 (16-ounce) package Velveeta cheese
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4 ounces cream cheese
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1 teaspoon garlic powder
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1 teaspoon onion powder
- 1 cup shredded sharp cheddar cheese
- Place the chicken in a large pot and add enough water to barely cover it. Cook over medium-low heat until the meat is fully cooked. Avoid boiling, as that can toughen the chicken. Let it cool until easy to handle, then shred it with two forks.
- Set your oven to 350°F. Coat a 13×9-inch baking dish with nonstick spray.
- Prepare the spaghetti according to the package, cooking it to al dente. Drain and set aside.
- In a large pot, stir together the Ro*Tel (including the liquid), the cream of mushroom soup, Velveeta, and cream cheese. Warm over low heat, stirring until the cheeses have melted smoothly. Mix in the garlic powder and onion powder. Add the shredded chicken and cooked pasta, stirring until everything is evenly coated. Transfer the mixture to the prepared baking dish and top with the shredded cheddar cheese.
- Bake for 20–30 minutes, or until the casserole is heated throughout and the cheese on top has melted.
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To freeze, assemble the dish but do not bake it. Wrap tightly and store in the freezer.
- To reheat, let the casserole thaw overnight in the refrigerator. Before baking, allow it to rest at room temperature for about 30 minutes so the dish can warm slightly—cold glass or ceramic should never go straight into a hot oven. Then bake as directed above.
