Rotel Chicken Spaghetti
Comfort food gets a bright, cheesy kick with this easy, weeknight-friendly casserole. Rotel Chicken Spaghetti brings together tender chicken, creamy cheese, and zesty diced tomatoes with green chilies for a cozy dish that’s family-friendly and full of flavor. It’s the kind of meal you’ll want to tuck into on a cool evening, serve at potlucks, or bring to a neighbor who needs dinner.
This version uses simple pantry staples and a short list of steps so you can have dinner on the table without fuss. Read on for tips on prep, how to keep the sauce silky, and a clear, step-by-step method so the dish turns out perfectly every time.
Why this recipe works

This Rotel Chicken Spaghetti recipe is a balance of creamy and bright. The Velveeta melts into a lusciously smooth sauce that coats every strand of spaghetti. The cream of chicken soup adds body without overwhelming the other flavors, while the Rotel diced tomatoes with green chilies provide a gentle, tangy heat that lifts the whole dish. Seasoning with taco seasoning, garlic powder, and onion powder gives savory depth without extra steps.
The chicken breasts are cooked gently and shredded so every bite has tender pieces of meat. Using cooked spaghetti tossed into the sauce makes assembly quick, and finishing with a shower of shredded cheddar adds a golden, melty top. Everything comes together in one casserole for easy serving and leftovers that reheat beautifully.
Ingredients
- 3 large boneless chicken breasts, about 2 pounds
- 1 Tbsp taco seasoning
- 1 Tbsp butter
- 1 (10.5-oz) can Unsalted Cream of Chicken Soup
- 1 (10-oz) can Rotel Diced Tomatoes with Green Chilies, undrained
- 1/2 tsp garlic powder
- 1/2 tsp onion powder
- 1 (8-oz) package Velveeta cheese, cubed
- 8-oz spaghetti, cooked and drained
- 1 cup shredded cheddar cheese
Notes on ingredients and prep
If you prefer, use a low-sodium cream of chicken soup to better control the dish’s salt level. The Velveeta is essential for that signature creamy texture, so keep it as listed. When cooking the chicken, I like to season it just with the taco seasoning called for here — it’s enough to infuse flavor without making the protein overpowering. The Rotel diced tomatoes with green chilies add acidity and a gentle kick; use the undrained can so the extra liquid helps create the sauce.
Cook the spaghetti just to al dente. It will finish softening in the sauce, and slightly firmer pasta holds up better if you plan to reheat leftovers. Shred the chicken while warm; it’s easier to pull apart and incorporates better into the sauce.
Step-by-step directions

Follow these clear, ordered steps to make the recipe exactly as written. The instructions match the ingredient amounts above and keep the process simple and reliable.
- Preheat the oven to 350°F (177°C). Lightly grease a 9×13-inch baking dish and set it aside.
- Place the 3 large boneless chicken breasts in a medium saucepan or deep skillet. Add enough water to cover the chicken by about an inch. Bring the water to a gentle boil over medium-high heat, then reduce heat to maintain a simmer. Cook the chicken until it reaches an internal temperature of 165°F (74°C), about 12–18 minutes depending on thickness.
- Once cooked, transfer the chicken breasts to a cutting board and use two forks to shred them into bite-sized pieces. Set aside while you prepare the sauce.
- In a large saucepan over medium heat, melt 1 Tbsp butter. Add the shredded chicken and 1 Tbsp taco seasoning to the pan, stirring to coat the chicken evenly. Cook for 1–2 minutes to warm the chicken through and bloom the spices.
- Stir into the pan the 1 (10.5-oz) can Unsalted Cream of Chicken Soup, 1 (10-oz) can Rotel Diced Tomatoes with Green Chilies (undrained), 1/2 tsp garlic powder, and 1/2 tsp onion powder. Mix thoroughly so the soup, tomatoes, and seasonings combine into a smooth sauce. Heat the mixture just until it begins to bubble lightly, about 3–4 minutes, stirring occasionally.
- Reduce the heat to low and add the 1 (8-oz) package Velveeta cheese, cubed. Stir continuously until the Velveeta melts completely and the sauce is uniformly smooth and creamy. This should take about 3–5 minutes. Keep the heat low to prevent scorching.
- Add the cooked and drained 8-oz spaghetti to the sauce. Use tongs or two forks to gently toss and fold the pasta into the cheesy mixture until every strand is coated and the chicken is evenly distributed. Adjust the mixture with a splash of milk or reserved pasta water if you prefer a slightly looser sauce.
- Transfer the combined spaghetti, chicken, and sauce into the prepared baking dish, spreading it into an even layer.
- Sprinkle 1 cup shredded cheddar cheese over the top of the casserole in an even layer.
- Bake in the preheated 350°F (177°C) oven for 15–20 minutes, or until the cheese on top is melted and bubbly and the casserole is heated through. If you’d like a golden top, you can broil for 1–2 minutes—watch carefully to avoid burning.
- Remove from the oven and let the casserole rest for 5 minutes before serving. This brief rest helps the sauce set slightly so portions hold together better.
Serving suggestions

Serve this Rotel Chicken Spaghetti straight from the baking dish with a crisp green salad and a wedge of lime or a side of garlic bread. For extra brightness, offer chopped cilantro or sliced green onions on the side to sprinkle over individual portions. It pairs well with a simple slaw to cut through the richness.
Make-ahead and storage
You can assemble the casserole up to a day ahead, cover it tightly, and refrigerate. Bake it from chilled, adding an extra 10–15 minutes to the bake time to ensure it’s hot throughout. Leftovers keep well in an airtight container in the refrigerator for 3–4 days. Reheat gently in the oven at 325°F (163°C) until warmed, or microwave individual portions until hot.
Tips for success
- Shred the chicken while warm for the best texture and easy mixing.
- Don’t overcook the spaghetti before combining it with the sauce. Al dente pasta prevents a mushy casserole.
- When melting the Velveeta, use low heat and stir constantly to produce a silky, uniform sauce.
- If the sauce feels too thick, a couple of tablespoons of milk or a splash of reserved pasta cooking water loosens it without thinning flavor.
- For a crispier top, broil for a minute at the end—but stay close and watch it carefully.
Variations and add-ins
This base recipe is forgiving and welcomes a few easy swaps. Stir in a cup of frozen corn or drained black beans for body and color. For a smoky twist, swap a portion of the taco seasoning for a teaspoon of smoked paprika. If you like more heat, add a diced jalapeño when you soften the seasoning with the chicken, or sprinkle cayenne to taste into the sauce.
Why you’ll make it again
Rotel Chicken Spaghetti is a weeknight hero: familiar, cheesy, and quick to pull together. It hits all the cozy comforts you want from a casserole while offering brightness from the diced tomatoes with green chilies so the dish doesn’t feel heavy. It reheats beautifully, freezes well for future meals, and pleases both kids and adults alike.
Final notes
This recipe is intentionally straightforward: minimal ingredients, direct steps, and reliable timing. If you follow the method above, you’ll end up with a creamy, peppery casserole studded with tender chicken and strands of spaghetti that hold their shape. It’s just the sort of homey, satisfying dinner that becomes a repeat favorite.
Enjoy a warm baking dish of Rotel Chicken Spaghetti alongside a simple salad or steamed vegetables for a complete, crowd-pleasing meal.

Rotel Chicken Spaghetti
Ingredients
Equipment
Method
- Preheat the oven to 350°F and spray a 9-inch square baking dish with nonstick cooking spray.
- Bring a large pot of salted water to a boil; cook the spaghetti according to package directions until al dente. Drain and set aside.
- Cut the chicken into bite-size pieces and toss with 1 tablespoon taco seasoning.
- In a large skillet, melt 1 tablespoon butter over medium-high heat. Add the seasoned chicken, 1/2 teaspoon garlic powder, and 1/2 teaspoon onion powder. Cook, stirring occasionally, until the chicken is cooked through and any liquid has evaporated.
- Reduce heat to low and stir in the cream of chicken soup, cubed Velveeta, and the undrained can of Rotel. Stir constantly until the cheese has melted and the sauce is smooth.
- Add the cooked spaghetti to the skillet and toss gently to combine so the pasta is evenly coated with the sauce.
- Pour the mixture into the prepared baking dish, sprinkle 1 cup shredded cheddar cheese over the top, and bake for 25 to 30 minutes until heated through and the cheese is melted.
Notes
- Use unsalted cream soups to control sodium.
- Velveeta melts smoothly for a creamy sauce.
- Cook pasta to al dente to avoid a mushy casserole.
- Season chicken before cooking for best flavor.
- Drain pasta well before mixing to prevent a watery casserole.
