Baked Tex-Mex Spaghetti

Comfort food gets a fiesta makeover in this cozy, family-friendly casserole. Baked Tex-Mex Spaghetti takes the familiar, saucy strands of pasta and layers them with seasoned ground meat, a creamy roux-based sauce, bright diced tomatoes with green chiles, and two meltingly gooey cheeses. It’s the kind of dish that feeds a crowd, stretches a weeknight budget, and tastes like a celebration in every forkful.

This version keeps things simple and approachable while delivering big Tex-Mex flavor: cumin and chili powder for warmth, fresh cilantro for brightness, and a creamy cheese blend that browns beautifully in the oven. The angel hair pasta cooks quickly and softens further as the bake rests, so you get tender strands surrounded by sauce rather than stiff noodles. Read on for a full ingredient list, helpful notes, and clear, step-by-step directions to make this satisfying casserole your new weeknight staple.

Why you’ll love this recipe

• Quick to assemble: ground turkey or lean ground beef cooks fast, and angel hair pasta only takes minutes to boil.
• One-dish dinner: everything bakes together for minimal clean-up and maximum comfort.
• Kid-friendly and customizable: swap mild for spicy cheeses, add corn or black beans for more texture, or use a lean ground meat of your choice.
• Make-ahead potential: assemble ahead and refrigerate, then bake when you’re ready.

Ingredients

• ¾ pound ground turkey or lean ground beef
• ½ cup finely chopped onion
• 4 tablespoons unsalted butter
• ½ cup all-purpose flour
• 1 ½ cup milk
• 2 (8-ounce) cans tomato sauce
• 1 (10-ounce) can diced tomatoes and green chiles, undrained
• 1 (8-ounce) package grated cheddar cheese
• 1 (8-ounce) package grated pepper Jack cheese
• 2 tablespoon fresh chopped cilantro
• 1 tablespoon ground cumin
• 2 teaspoon chili powder
• ½ teaspoon salt
• 16 ounces angel hair pasta

Notes and tips before you start

• Choice of meat: Use either ¾ pound ground turkey or lean ground beef—both work well. The flavor will vary slightly: turkey yields a lighter profile, beef a richer one.
• Cheese: Grated cheddar and pepper Jack melt into a creamy, slightly spicy layer. If you prefer milder dishes, reduce the pepper Jack or substitute with milder Monterey Jack.
• Pasta timing: Angel hair pasta cooks quickly. Pull it from the water a minute or two shy of package directions if you like a firmer bite after baking; otherwise cook fully to tender.
• Make-ahead: You can assemble the casserole, cover tightly, and refrigerate up to 24 hours before baking. Add a few extra minutes to the bake time if baking straight from cold.
• Serving: Let the casserole rest 5–10 minutes after baking so it sets and slices cleanly.

Step-by-step directions

1. Preheat and prepare: Preheat your oven to 350°F (175°C). Bring a large pot of salted water to a boil to cook the angel hair pasta according to package instructions. While the water heats, prepare the other components so everything comes together quickly.
2. Cook the pasta: Once the water is boiling, add 16 ounces angel hair pasta and cook until just shy of al dente if you prefer a slightly firmer texture after baking, or fully cooked if you want it very soft. Drain the pasta and set it aside while you finish the sauce and meat mixture.
3. Brown the meat with onions: In a large skillet over medium-high heat, add ¾ pound ground turkey or lean ground beef and ½ cup finely chopped onion. Cook, breaking the meat apart with a spoon, until the meat is no longer pink and the onion is softened, about 6–8 minutes. Drain any excess fat if necessary, then season the cooked meat and onion with 1 tablespoon ground cumin, 2 teaspoon chili powder, and ½ teaspoon salt. Stir to combine and remove the skillet from the heat.
4. Make the roux-based creamy sauce: In a separate medium saucepan, melt 4 tablespoons unsalted butter over medium heat. Once the butter is melted and foamy, add ½ cup all-purpose flour and whisk continuously for about 1–2 minutes to cook out the raw flour taste and form a smooth roux.
5. Add milk to the roux: Slowly whisk in 1 ½ cup milk to the roux, pouring in a steady stream while whisking to prevent lumps. Continue cooking and whisking until the mixture thickens to a creamy sauce consistency, about 3–5 minutes. Remove from heat once the sauce is smooth and thickened.
6. Combine sauces and tomatoes: Stir the two (8-ounce) cans tomato sauce into the creamy milk sauce until evenly combined. Then add the (10-ounce) can diced tomatoes and green chiles, undrained, and gently stir so the tomatoes and chiles are distributed throughout the sauce. Taste and adjust seasoning if desired—you can add a touch more salt or chili powder to suit your preferences.
7. Layer the casserole: In a large mixing bowl, combine the cooked and drained angel hair pasta with the cooked meat and onion mixture. Pour the tomato-milk-cheese sauce over the pasta and meat, gently tossing everything together so the pasta is evenly coated.
8. Add the cheeses: Reserve a small handful of grated cheeses for topping if you want a browned surface. Stir 1 (8-ounce) package grated cheddar cheese and 1 (8-ounce) package grated pepper Jack cheese into the pasta and sauce mixture until the cheese melts into the hot pasta and sauce.
9. Transfer to a baking dish: Spoon the combined mixture into a lightly greased 9×13-inch baking dish, spreading it evenly. Sprinkle the reserved handful of grated cheddar and pepper Jack over the top for an attractive golden finish once baked.
10. Bake until bubbly: Place the baking dish in the preheated 350°F oven and bake for 20–25 minutes, or until the top is bubbly and the cheeses are melted and beginning to turn golden brown. If you prefer a more browned top, you can switch the oven to broil for the last 1–2 minutes—watch closely to prevent burning.
11. Finish with fresh cilantro and rest: Remove the casserole from the oven and sprinkle 2 tablespoon fresh chopped cilantro evenly over the top. Let the dish rest for 5–10 minutes before serving so the pasta absorbs some of the sauce and the layers settle for cleaner slices.
12. Serve and enjoy: Spoon the Baked Tex-Mex Spaghetti into bowls or onto plates. Offer extra chopped cilantro, crushed tortilla chips, or a squeeze of lime on the side for brightness and texture if you like.

Make it your own

• Add vegetables: Stir in a cup of drained canned corn or a cup of rinsed black beans when mixing the pasta and sauce for added color, fiber, and heartiness.
• Spice level: Increase the 2 teaspoon chili powder or add a pinch of cayenne if you want more heat. For a milder version, reduce the pepper Jack cheese or swap it for additional cheddar.
• Crunchy topping: For a textural contrast, sprinkle crushed tortilla chips or panko mixed with a little melted butter over the top before baking.
• Freshness boost: A squeeze of lime and extra chopped cilantro on each serving brightens the rich, creamy flavors.

Storage and reheating

• Fridge: Store leftovers in an airtight container for up to 3–4 days. Reheat individual portions in the microwave until warmed through, or reheat a whole dish at 350°F for 15–20 minutes, covered, until hot.
• Freezer: For longer storage, assemble (but don’t bake) and wrap tightly, or bake then freeze. Unbaked casseroles freeze well for up to 2 months—thaw overnight in the refrigerator and bake as directed, adding a few extra minutes. If frozen after baking, thaw overnight and reheat at 350°F until heated through.

Serving suggestions

• Pair with a crisp green salad to balance the richness.
• Serve alongside steamed vegetables or a simple slaw for added crunch.
• Top individual portions with avocado slices, sour cream, or pickled jalapeños for extra creaminess and acidity.

Final thoughts

This Baked Tex-Mex Spaghetti is one of those comforting, hands-across-the-table dishes that always feels like a homecoming. It combines pantry-friendly ingredients with fresh cilantro and spicy cheese for a casserole that’s familiar yet exciting. Whether you’re feeding a hungry family, bringing a dish to a potluck, or simply craving something warm and cheesy, this recipe delivers satisfying layers of flavor and texture.

Follow the step-by-step directions above, and in about an hour from start to finish you’ll have a golden, bubbling casserole ready to slice and share. Cozy, flavorful, and built to please—this Baked Tex-Mex Spaghetti might just become your next weeknight favorite.