
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.

How I Make It
Smart PrepI 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 ChickenTossing 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 PerfectionDon'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 TrickSpraying 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.

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.