Mexican Spaghetti Casserole Recipe That Feeds a Hungry Crowd

Mexican Spaghetti Casserole unites two comfort food favorites in one satisfying dish that works for busy weeknights or casual gatherings.

Bold flavors meet familiar pasta in a way that feels both exciting and comforting at the same time.

It's the kind of meal that disappears fast from the dinner table, leaving everyone happy and full.

You get all the warmth of a home-cooked dinner without spending hours in the kitchen.

This casserole bakes up beautifully golden and bubbly, filling the house with an aroma that makes everyone suddenly very hungry.

Leftovers reheat wonderfully, making lunch the next day something to actually look forward to instead of just an afterthought.

Whether feeding a crowd or meal prepping for the week ahead, this dish unlocks big on flavor and convenience.

Head to the recipe card below and see just how simple it is to put together something that tastes like so much more effort went into it.

Why You Should Try Mexican Spaghetti Casserole

• Simple Weeknight Meal: This casserole comes together faster than ordering takeout, giving your family a delicious dinner without complicated steps.
• Budget-Friendly Feast: Stretching ground beef with pasta and beans creates a hearty meal that feeds everyone without breaking the bank.
• Crowd-Pleasing Flavor Mix: The blend of Mexican spices and classic cheese makes this dish a total winner for picky eaters and adventurous taste buds alike.
• One-Pan Wonder: Minimal dishes and maximum flavor mean more time enjoying dinner and less time scrubbing pots and pans afterward.

Mexican Spaghetti Casserole Ingredient Breakdown

• Spaghetti (12 oz): The perfect noodle foundation that will soak up all the delicious Mexican-inspired flavors in your casserole.

• Ground Beef (1 lb): A hearty protein that gives your casserole robust depth and satisfying texture.

• Black Beans (15 oz can), Corn (15 oz can), Diced Tomatoes with Green Chilies (10 oz can): These colorful ingredients add southwestern flair, protein, and a fresh kick to your dish. The combination brings fantastic texture and authentic Mexican-style flavor.

• Salsa (1 cup): Provides a tangy, zesty base that pulls all the ingredients together.
• Cumin (1 tsp), Chili Powder (1 tsp): Warm spices that deliver authentic Mexican seasoning.
• Salt and Pepper (to taste): Classic seasonings to balance and highlight the other flavors.

• Shredded Cheddar Cheese (2 cups): A melty, golden blanket that makes this casserole irresistibly comforting and brings everything together with gooey goodness.

Full Baking Tools for Mexican Spaghetti Casserole

• Large Skillet (12-inch): Your main workspace for browning beef and mixing all those delicious Mexican-inspired ingredients together.
• Baking Dish (9×13-inch): Perfect for holding your entire casserole and getting that gorgeous melted cheese top.
• Colander: Essential for draining your spaghetti neatly without losing any pasta down the sink.
• Wooden Spoon or Spatula: Helps you stir and combine ingredients smoothly without scratching your skillet.
• Measuring Cups and Spoons: Ensures you get the right amount of spices and ingredients for perfect flavor balance.
• Large Pot: Needed for boiling spaghetti to just the right tender texture.
• Chef’s Knife: Useful for any quick chopping if your tomatoes or other ingredients need extra preparation.

Step-by-Step Guide for Mexican Spaghetti Casserole

Tricks for Flavorful Mexican Spaghetti Casserole

• Cook spaghetti just shy of al dente, so it absorbs flavors without turning mushy during baking.
• Drain excess fat completely to keep your casserole from becoming greasy and ensure rich, concentrated meat flavor.
• Adjust cumin and chili powder to match your heat preference, tasting the mixture before adding spaghetti.
• Shred your own cheddar for better melting and a more authentic, creamy cheese layer across the casserole.
• Allow the casserole to sit for 5-10 minutes after baking, which helps it set and makes serving easier.

Mexican Spaghetti Casserole Variations

• Veggie Protein Power: Swap ground beef with crumbled firm tofu or plant-based meat substitute, keeping the same spice measurements for a protein-packed vegetarian version.
• Gluten-Free Friendly: Replace regular spaghetti with gluten-free pasta noodles, ensuring all other ingredients remain the same for a celiac-safe meal.
• Spicy Kick Option: Double the chili powder and add diced jalapeños or green chilies to the beef mixture for extra heat that’ll warm your taste buds.
• Dairy-Free Adaptation: Use dairy-free cheese shreds or nutritional yeast sprinkled on top instead of cheddar, perfect for those avoiding dairy products.

How to Serve Mexican Spaghetti Casserole

• Serve with Fresh Salad: Toss together a crisp green salad with cilantro and lime to balance the rich, hearty casserole. The bright, tangy flavors will complement your cheesy pasta dish perfectly.
• Top with Creamy Garnish: Dollop some sour cream or Greek yogurt on top just before serving. This cool, smooth addition cuts through the spicy warmth and adds a delightful texture contrast.
• Pair with Warm Tortillas: Grab some soft flour or corn tortillas to scoop up extra sauce and make your meal more interactive. They’re great for soaking up all those delicious Mexican-inspired flavors.
• Enjoy Chilled Beverage: Grab a cold Mexican beer or a refreshing margarita to wash down the spicy, cheesy casserole. The cool drink will balance the warm, hearty meal perfectly.

How to Store Mexican Spaghetti Casserole

• Keep leftovers in an airtight container in the refrigerator for up to 4 days, so your casserole stays fresh and tasty.
• Freeze individual portions in sealed containers for quick meals when time is tight, perfect for busy weeknights.
• When reheating, add a splash of water to prevent the pasta from drying out and restore the casserole’s original moisture.
• Store any extra shredded cheese separately in the fridge to maintain its texture and prevent clumping when you want to sprinkle more on top.

Mexican Spaghetti Casserole Q&A

TexMex Mexican Spaghetti Casserole Recipe

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4.5 from 29 reviews

• Total Time: 45 minutes
• Yield: 6 1x

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Description

Comfort meets Mexican flair in this Mexican Spaghetti Casserole that brings zesty cheese, hearty ground beef, and spicy peppers together in one delicious baked dish. Creamy, cheesy layers meld perfectly with robust seasonings, creating a crowd-pleasing meal your family will devour in minutes.

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Ingredients

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Main Ingredients:

• 1 lb ground beef
• 12 oz spaghetti
• 2 cups shredded cheddar cheese

Supporting Ingredients:

• 1 can (15 oz) black beans, drained
• 1 can (15 oz) corn, drained
• 1 can (10 oz) diced tomatoes with green chilies
• 1 cup salsa

Seasonings:

• 1 teaspoon cumin
• 1 teaspoon chili powder
• Salt
• Pepper

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Instructions

1. Heat your oven precisely to 350°F, preparing a comfortable cooking environment for this zesty casserole.
2. Cook 12 oz spaghetti in boiling water according to package directions until perfectly al dente, then thoroughly drain in a colander.
3. Brown 1 lb ground beef in a large skillet over medium heat for 7-8 minutes, carefully draining any accumulated fat afterward.
4. Combine 1 can of black beans, 1 can of corn, 1 can of diced tomatoes with green chilies, 1 cup salsa, 1 tsp cumin, and 1 tsp chili powder into the skillet with the beef, stirring until everything melds together.
5. Gently fold the drained spaghetti into the seasoned meat mixture, ensuring every strand gets coated with the spicy sauce.
6. Transfer the entire mixture into a 9×13 inch baking dish, spreading it evenly across the surface.
7. Sprinkle 2 cups of shredded cheddar cheese generously over the top, covering the casserole completely.
8. Bake at 350°F for 25-30 minutes until the cheese melts into a golden, bubbling layer.
9. Remove from the oven and let the casserole rest for 5 minutes to allow flavors to settle before serving.

Notes

• Fresh cilantro or green onions make a fantastic garnish that brightens the entire casserole’s flavor profile.
• Choose lean ground beef to keep the dish lighter and reduce excess grease during cooking.
• For a vegetarian version, substitute the ground beef with plant-based crumbles or additional beans for protein.
• Swap regular spaghetti for whole wheat pasta to add more fiber and nutrition to your meal.

• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Category: Casseroles
• Method: Baking
• Cuisine: Mexican

Nutrition

• Serving Size: 6
• Calories: 490 kcal
• Sugar: 4 g
• Sodium: 560 mg
• Fat: 23 g
• Saturated Fat: 12 g
• Unsaturated Fat: 9 g
• Trans Fat: 0.5 g
• Carbohydrates: 43 g
• Fiber: 7 g
• Protein: 32 g
• Cholesterol: 70 mg