Rotel Chicken Pasta Bake

Featured in Delicious Dinner Inspirations.

Simple dump-and-bake chicken spaghetti casserole featuring rotisserie chicken, Rotel tomatoes, and a creamy, cheesy sauce with just the right amount of spice. Ready in under an hour.
Casey
Updated on Sun, 02 Mar 2025 14:30:39 GMT
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I've made this chicken spaghetti with Rotel more times than I can count since discovering it last year. It's become my go-to when I need a no-stress dinner that still feels like I put in effort! The combination of creamy sauce, tender chicken, and that perfect kick from the Rotel creates this cozy comfort food that somehow tastes even better the next day.

My husband's eyes light up whenever he sees me deboning a rotisserie chicken now because he knows what's coming! And my picky nephew who "hates casseroles" ate two full servings of this.

What You'll Need

  • Rotisserie chicken: This shortcut is a game-changer. Costco's are definitely the best value, but grocery store ones work great too.
  • Spaghetti: Regular spaghetti works perfectly, though I've used thin spaghetti in a pinch with good results.
  • Rotel tomatoes: The star ingredient that gives this dish its personality! I use original, but mild works for kids or spice-sensitive folks.
  • Cream of chicken soup: Look for the "with herbs" version for extra flavor. The store brand works just fine here.
  • Sour cream: Adds that perfect tangy creaminess that makes the sauce special.
  • Cheese: The Mexican blend gives great meltability and flavor. Freshly shredded melts better than pre-shredded if you have time.
  • Cajun seasoning: This brings everything together! I like Tony Chachere's, but any brand works.
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How I Make It

Smart Prep

I always start the water boiling for pasta first thing since that takes the longest. While waiting for it to boil, I debone the chicken and mix up the sauce, so everything's ready when the pasta is done.

Secret to Moist Chicken

Tossing the shredded chicken with a little chicken broth and seasoning is genius - it keeps the chicken from drying out during baking and distributes that cajun flavor throughout.

Sauce Perfection

Don't drain the Rotel! Those juices add so much flavor to the sauce. I whisk everything really well to make sure there are no cream soup lumps before adding it to the pasta.

Foil Trick

Spraying the foil with non-stick spray before covering the casserole is absolutely crucial - otherwise, half your cheese comes off with the foil when you remove it!

I first made this recipe when my neighbor had surgery and I needed something easy to drop off that would reheat well. It was such a hit that she asked for the recipe before she'd even finished recovering!

Serving Ideas

This is hearty enough to stand alone, but I often serve it with a simple green salad dressed with vinaigrette to cut through the richness. Garlic bread is another perfect pairing if you're feeding really hungry people. For large gatherings, I sometimes make it in two smaller dishes instead of one large one - one spicy and one mild.

Make It Your Own

Add a can of drained corn for sweetness and color. Mix in sautéed bell peppers and onions for extra vegetables. Use pepper jack instead of the Mexican blend for more heat. Substitute leftover holiday turkey for the chicken when you're tired of turkey sandwiches.

Storage Smarts

This freezes amazingly well! I portion leftovers into individual containers for quick lunches. To reheat from frozen, thaw overnight in the fridge then microwave with a splash of milk or chicken broth to keep it creamy. If reheating a larger portion, cover with foil and bake at 350°F until heated through.

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Pro Tips

  • Break the spaghetti in half before cooking for easier mixing and serving
  • Reserve a little pasta water to add to the sauce if it seems too thick
  • Bake in a glass dish so you can see when the edges are perfectly golden and bubbly

This chicken spaghetti recipe has saved dinner at my house countless times when I'm tired but still want something homemade and comforting. There's something magical about that combination of creamy sauce, tender pasta, juicy chicken and the slight kick from the Rotel that makes it taste like it took way more effort than it actually did!

Frequently Asked Questions

→ Can I use a different pasta?
Yes, any medium pasta shape works well. Try penne, rotini, or farfalle if you don't have spaghetti.
→ How spicy is this dish?
It has a moderate kick, but you can adjust the heat by reducing the cajun seasoning and red pepper flakes.
→ Can I make this ahead of time?
Yes, assemble up to 24 hours ahead, refrigerate, then add 10-15 minutes to the baking time.
→ What's the best way to reheat leftovers?
Add a splash of chicken broth to each portion before reheating to prevent the pasta from drying out.
→ Can I use regular diced tomatoes instead of Rotel?
Yes, but add a small can of diced green chilies to maintain the flavor profile.

Creamy Chicken Spaghetti

A comforting, creamy chicken spaghetti casserole made with Rotel tomatoes, shredded chicken, and lots of cheese with a spicy kick from cajun seasoning.

Prep Time
15 Minutes
Cook Time
40 Minutes
Total Time
55 Minutes
By: Casey

Category: Dinner Delights

Difficulty: Easy

Cuisine: American

Yield: 6 Servings (1 9x13 casserole)

Dietary: ~

Ingredients

→ Main Ingredients

01 4 cups rotisserie chicken, shredded or chunked
02 12 oz dry spaghetti
03 1 cup chicken stock, divided
04 1 (10 oz) can Rotel tomatoes with green chilies
05 2 (10.5 oz) cans cream of chicken with herbs condensed soup
06 1 cup sour cream
07 4 garlic cloves, minced
08 3 cups shredded cheese (Mexican blend or similar)

→ Seasonings

09 3 tablespoons cajun seasoning, divided
10 ½ teaspoon red pepper flakes
11 ½ teaspoon seasoning salt
12 ½ teaspoon freshly ground pepper
13 Dried parsley for garnish

→ Homemade Cajun Seasoning (Optional)

14 2 tablespoons smoked paprika
15 1 tablespoon cayenne pepper
16 1 tablespoon onion powder
17 2 teaspoons garlic powder
18 1 teaspoon ground black pepper
19 1 teaspoon salt
20 ½ teaspoon dried thyme
21 ½ teaspoon dried oregano

Instructions

Step 01

Preheat oven to 375°F. Bring large pot of water to boil and cook spaghetti according to package directions.

Step 02

Debone rotisserie chicken and place in large bowl. Pour ¼ cup chicken broth over chicken to moisten, then sprinkle with about 2 tablespoons of cajun seasoning, coating evenly.

Step 03

In another large bowl, combine cream of chicken soup, undrained Rotel, sour cream, minced garlic, 1 tablespoon cajun seasoning, seasoning salt, red pepper flakes, and black pepper. Whisk until smooth.

Step 04

Heat remaining ¾ cup chicken stock until warm, then whisk into sauce mixture.

Step 05

In 9×13 casserole dish, combine drained spaghetti, seasoned chicken, sauce mixture, and half the cheese. Mix thoroughly with tongs to evenly distribute ingredients.

Step 06

Top with remaining cheese and sprinkle with dried parsley. Cover with foil (spray foil with nonstick spray first). Bake 25 minutes, then uncover and bake additional 10 minutes until cheese is melted and edges are browned and bubbly.

Notes

  1. Homemade cajun seasoning recommended but store-bought works too
  2. When reheating, add splashes of chicken stock to rehydrate pasta
  3. Great make-ahead dish for busy weeknights

Tools You'll Need

  • 9×13 casserole dish
  • Large pot for pasta
  • Large mixing bowls
  • Aluminum foil

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy (cheese, sour cream)
  • Contains wheat (pasta)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 575
  • Total Fat: 32 g
  • Total Carbohydrate: 40 g
  • Protein: 35 g