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Chicken spaghetti with Rotel is a creamy, cheesy casserole made with tender shredded chicken, spaghetti noodles, diced tomatoes with green chilies, and a rich, savory sauce. Everything gets tossed together, topped with cheddar cheese, and baked until hot and bubbly.
This comforting chicken spaghetti casserole combines two creamy soups, sour cream, and chicken broth for a smooth sauce that coats every strand of pasta. Rotel tomatoes add a little tang and gentle heat, balancing the richness of the cheese. It’s a satisfying family dinner that uses simple pantry ingredients and leftover cooked chicken, making preparation especially convenient on busy evenings.
Why You’ll Love This Chicken Spaghetti with Rotel
This baked chicken spaghetti is a dependable comfort food dinner with plenty of flavor and very little complicated preparation.
The combination of creamy sauce, tender chicken, and melted cheddar gives the casserole its signature rich texture. Meanwhile, the tomatoes and green chilies provide a welcome contrast without overpowering the other ingredients.
Another advantage is flexibility. You can use leftover chicken, prepare the casserole ahead of time, or adjust the cheese to suit your family’s preferences.
Since everything bakes together in one casserole dish after the pasta is cooked, serving and cleanup are straightforward.
Ingredients You’ll Need
This easy chicken spaghetti with Rotel relies on familiar ingredients that work together to create a creamy, flavorful casserole.
Chicken and Pasta
Cooked chicken: Two cups of shredded chicken provide the protein and savory flavor. Leftover baked chicken, poached chicken, or rotisserie chicken all work well.
Spaghetti: Eight ounces of spaghetti form the base of the casserole. Cooking the pasta until al dente helps prevent overly soft noodles after baking.
Creamy Sauce Ingredients
Cream of chicken soup: Adds chicken flavor while helping create a thick, creamy sauce.
Cream of mushroom soup: Contributes a savory depth that complements the chicken and cheddar.
Sour cream: Gives the sauce richness and a subtle tang.
Chicken broth: Loosens the condensed soups so the sauce can coat the spaghetti evenly.
Cheese, Tomatoes, and Seasonings
Rotel tomatoes: One drained 10-ounce can adds tomato flavor and green chilies. Draining the tomatoes prevents excess liquid from thinning the sauce.
Cheddar cheese: Two cups of shredded cheddar are divided between the casserole filling and its melted topping.
Seasonings: Garlic powder, onion powder, salt, and black pepper create a balanced savory flavor without requiring additional preparation.
How to Make Chicken Spaghetti with Rotel
This creamy chicken spaghetti casserole comes together with a few simple steps before baking.
Step 1: Prepare the Oven and Pasta
Preheat your oven to 350°F and grease a 9×13-inch baking dish.
Cook the spaghetti in a large pot of salted water until al dente. Drain thoroughly and set aside.
Avoid overcooking the noodles because they will continue softening as the casserole bakes.
Step 2: Make the Creamy Sauce
In a large mixing bowl, whisk together the chicken broth, sour cream, cream of chicken soup, and cream of mushroom soup.
Add the drained Rotel tomatoes, garlic powder, onion powder, salt, and black pepper.
Mix until the sauce is evenly combined.
Step 3: Combine the Ingredients
Add the shredded chicken, cooked spaghetti, and 1 cup of shredded cheddar cheese.
Stir gently until the chicken and noodles are thoroughly coated with the creamy sauce.
Transfer the mixture to your prepared baking dish and spread it evenly.
Step 4: Add Cheese and Bake
Sprinkle the remaining cup of shredded cheddar over the casserole.
Bake uncovered for 30–35 minutes, until the cheese melts and the casserole is bubbling around the edges.
For food safety, a casserole containing previously cooked chicken should reach 165°F when reheated, according to the USDA’s safe temperature guidelines.
Allow the casserole to rest for 5 minutes before serving.
Tips for the Best Chicken Spaghetti Casserole
A few simple techniques make a noticeable difference in the finished casserole.
Cook the pasta al dente. Slightly firm spaghetti holds its shape better during baking.
Drain the Rotel thoroughly. Extra tomato liquid can make the casserole watery.
Shred the cheese yourself. Freshly shredded cheddar generally melts more smoothly than packaged shredded cheese.
Mix everything evenly. Distributing the sauce throughout the spaghetti prevents dry sections.
Avoid unnecessary extra baking. Once the casserole is hot and bubbly, prolonged baking can dry out the edges.
Let it rest before serving. Five minutes allows the creamy sauce to settle slightly, making portions easier to serve.
Easy Variations and Substitutions
You can customize this cheesy chicken spaghetti while keeping the original recipe’s creamy character.
For a milder casserole, choose mild Rotel tomatoes or another brand of diced tomatoes with mild green chilies.
For additional heat, use a hotter variety of Rotel.
Monterey Jack or Colby Jack can replace some of the cheddar for a different cheese flavor.
Rotisserie chicken is another convenient option, especially when you want to avoid cooking chicken specifically for this dish.
These changes are optional; the original combination delivers a creamy, savory casserole with a gentle kick.
What to Serve with Chicken Spaghetti
Because chicken spaghetti with Rotel is rich and filling, lighter side dishes provide a pleasant contrast.
A simple green salad with vinaigrette adds freshness, while steamed broccoli or roasted green beans complement the creamy pasta.
Garlic bread is another popular pairing, particularly when serving this casserole for a family gathering.
For a colorful dinner plate, try roasted carrots or a crisp cucumber salad.
Make-Ahead and Storage Instructions
To prepare this chicken spaghetti casserole ahead, assemble it in the baking dish, cover, and refrigerate until ready to bake.
Because a refrigerated casserole starts colder, it may require additional baking time. Check that the center reaches 165°F.
Store leftovers in airtight containers in the refrigerator for 3–4 days.
According to the USDA’s leftover food-safety recommendations, perishable leftovers should be refrigerated promptly.
Reheat individual portions in the microwave or warm larger portions in the oven until heated through to 165°F.
For longer storage, freeze cooled portions in freezer-safe containers. Thaw overnight in the refrigerator before reheating. The creamy sauce may change texture slightly after freezing.
Frequently Asked Questions
Can I use rotisserie chicken?
Yes. Shredded rotisserie chicken works wonderfully in this recipe and saves preparation time. Measure two cups of cooked chicken before adding it to the sauce.
Is chicken spaghetti with Rotel spicy?
The casserole has mild heat when prepared with original Rotel tomatoes. For less spice, choose mild diced tomatoes with green chilies.
Can I make chicken spaghetti ahead of time?
Yes. Assemble the casserole ahead, cover, and refrigerate. Bake when ready to serve, allowing additional time if the dish is cold.
Can I freeze chicken spaghetti casserole?
Yes. Freeze cooled portions in airtight, freezer-safe containers. The sauce may become slightly less smooth after thawing, but gentle reheating helps maintain its creamy consistency.
How do I keep chicken spaghetti from drying out?
Cook the pasta al dente, measure the sauce ingredients accurately, and avoid overbaking. The chicken broth, sour cream, and condensed soups provide the moisture needed for a creamy casserole.
Chicken Spaghetti with Rotel
Creamy chicken spaghetti with Rotel is a cheesy baked casserole made with shredded chicken, tender spaghetti, diced tomatoes with green chilies, sour cream, and cheddar cheese. A comforting family dinner that’s baked until hot and bubbly.
- Cook Time: 30-35 minutes
- Total Time: 0 hours
- Category: Main Course
- Method: Baking
- Cuisine: American
Ingredients
2 cups cooked chicken, shredded
8 ounces spaghetti, cooked
1 (10.5-ounce) can cream of chicken soup
1 (10.5-ounce) can cream of mushroom soup
1 cup sour cream
1 cup chicken broth
1 teaspoon garlic powder
1 teaspoon onion powder
1/2 teaspoon salt
1/4 teaspoon black pepper
1 (10-ounce) can Rotel tomatoes, drained (or your favorite brand of diced tomatoes with green chilies)
2 cups shredded cheddar cheese, divided
Instructions
1. Preheat the oven to 350°F. Grease a 9×13-inch baking dish.
2. Cook the spaghetti in a large pot of salted water until al dente. Drain and set aside.
3. In a large bowl, whisk together the chicken broth, sour cream, cream of chicken soup, cream of mushroom soup, drained Rotel tomatoes, garlic powder, onion powder, salt, and black pepper.
4. Add the shredded chicken, cooked spaghetti, and 1 cup of shredded cheddar cheese. Stir until evenly combined.
5. Transfer the mixture to the prepared baking dish and spread evenly.
6. Sprinkle the remaining 1 cup of shredded cheddar cheese over the top.
7. Bake uncovered for 30–35 minutes, until the cheese is melted and the casserole is bubbly. Ensure the center reaches 165°F.
8. Let the casserole rest for 5 minutes before serving.
Notes
Cook the spaghetti until al dente to prevent the noodles from becoming too soft during baking.
Drain the Rotel tomatoes thoroughly to prevent excess moisture in the casserole.
Rotisserie chicken or leftover cooked chicken works well.
For a milder casserole, use mild Rotel tomatoes.
Freshly shredded cheddar generally melts more smoothly than packaged shredded cheese.
Make ahead: Assemble the casserole, cover, and refrigerate until ready to bake. A chilled casserole may require additional baking time.
Storage: Refrigerate leftovers in airtight containers for 3–4 days.
Reheating: Reheat leftovers to an internal temperature of 165°F.
Freezing: Freeze cooled portions in freezer-safe containers. Thaw in the refrigerator before reheating. The sauce texture may change slightly.