Introduction
This Mexican Lasagna is a crowd-pleasing fusion dish that layers all the hearty flavors of your favorite taco night into a comforting, easy-to-slice casserole. You get the satisfying layers of a classic lasagna but with a south-of-the-border twist using corn tortillas, seasoned beef, and plenty of melted cheese. It’s perfect for feeding a large group with minimal fuss.
Prep & Cook Time
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Servings: 12
Ingredients
- 1 pound ground beef
- 1 medium yellow onion (diced)
- 2 teaspoons minced garlic (2 cloves)
- 1/4 cup taco seasoning (2 packets)
- 1/2 cup water
- 4 ounce green chiles (1 can)
- 15 ounce black beans (1 can, drained and rinsed)
- 18 corn tortillas (divided)
- 6 cups shredded jack and cheddar cheese (divided)
- 1 medium tomato (1-2 tomatoes diced for garnish)
- 1 bunch green onions (sliced for garnish)
- sour cream (for serving)
Instructions
- Preheat your oven to 375°F (190°C) and lightly grease a 9×13 inch baking dish.
- In a large skillet over medium-high heat, cook the ground beef and diced yellow onion until the beef is browned and the onion is soft, about 5-7 minutes. Drain any excess fat.
- Add the minced garlic and cook for 1 minute until fragrant. Stir in the taco seasoning, water, fire roasted diced tomatoes (with their juices), and green chiles. Bring to a simmer and cook for 2-3 minutes. Remove from heat and stir in the drained and rinsed black beans.
- To assemble, layer 6 corn tortillas on the bottom of the prepared baking dish, tearing some as needed to cover the surface completely.
- Spread half of the meat and bean mixture evenly over the tortillas. Sprinkle with 2 cups of the shredded cheese.
- Add another layer of 6 corn tortillas. Top with the remaining meat mixture and another 2 cups of cheese.
- Finish with a final layer of the remaining 6 corn tortillas and top with the last 2 cups of cheese.
- Cover the dish with foil and bake for 25 minutes. Remove the foil and bake for an additional 10-15 minutes, or until the cheese is bubbly and lightly golden.
- Let the lasagna rest for 10 minutes before slicing. Garnish with diced tomato and sliced green onions. Serve with sour cream on the side.
Variations
- Make it Enchilada-Style: For a saucier casserole, briefly dip each corn tortilla in a mild enchilada sauce before layering.
- Add a Crunchy Top: During the last 5 minutes of baking, add a layer of crushed tortilla chips over the melted cheese for extra texture.
- Vegetarian Swap: Simply omit the ground beef and use an extra can of black beans or pinto beans for a hearty meatless version.
- Individual Servings: Assemble the layers in smaller, oven-safe dishes or cast iron skillets for personalized portions with shorter bake times.
Tips for Success
- Letting the assembled lasagna rest before cutting is crucial; it allows the layers to set so you get clean slices.
- To prevent the tortillas from drying out, ensure your meat mixture is saucy and that the bottom tortilla layer is fully covered.
- Using a mix of jack and cheddar cheese provides a great balance of melt and flavor, but feel free to use a pre-shredded Mexican cheese blend for convenience.
- If your corn tortillas are very stiff, you can warm them briefly in a microwave or skillet to make them more pliable and easier to layer.
Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave until hot, or cover the whole dish with foil and reheat in a 350°F oven for 15-20 minutes until thoroughly warmed.
FAQ
Can I make this ahead of time?
Yes! Assemble the lasagna completely, cover tightly, and refrigerate for up to 24 hours before baking. You may need to add 5-10 minutes to the covered baking time.
Can I use flour tortillas instead of corn?
Yes, but the flavor and texture will change. Flour tortillas will become softer. You may only need 12-15 tortillas as they are larger.
How can I make it less spicy?
Use a mild taco seasoning and a can of mild green chiles. The fire roasted tomatoes are typically not very spicy, but you can substitute with regular diced tomatoes.
Do I have to use both types of cheese?
No, you can use all cheddar, all Monterey Jack, or a store-bought Mexican cheese blend, as long as it totals 6 cups.
Can I freeze Mexican Lasagna?
Absolutely. Assemble and bake as directed, let it cool completely, then wrap tightly and freeze for up to 3 months. Thaw in the refrigerator overnight before reheating.
What can I serve with this?
A simple side salad, Mexican rice, or a quick corn and avocado salsa are all excellent choices to round out the meal.

