
This hearty vegetarian tortilla casserole combines the comfort of traditional lasagna with vibrant Mexican flavors. Layers of corn tortillas, seasoned vegetables, and beans are enveloped in a rich homemade enchilada sauce and topped with melted cheese. Each layer delivers satisfying textures and bold tastes that make this meatless main dish a true crowd-pleaser.
This recipe has become a trusted favorite for family gatherings and potlucks. The key to its success lies in carefully seasoning each component and allowing the flavors to develop while baking.
Key Ingredients
- Fire-roasted tomatoes: San Marzano variety provides optimal sweetness and depth for the sauce
- Sweet corn: Fresh kernels offer bursts of natural sweetness
- Monterey Jack cheese: Creates perfect melted texture, freshly grated
- Corn tortillas: Traditional choice for authentic flavor and texture
Assembly Method
- Sauce Base:
- Start with aromatics in hot oil before adding tomatoes
- Vegetable Prep:
- Cut vegetables uniformly for consistent cooking
- Tortilla Prep:
- Lightly toast tortillas to enhance flavor
- Layering:
- Build even layers for balanced flavor distribution
- Final Touch:
- Top with remaining cheese and sauce

Properly sautéing each vegetable brings out their natural sweetness. Taking time with each component ensures the best final result.
Serving Ideas
Serve alongside fresh accompaniments like jicama citrus salad or quick-pickled red onions. Fresh avocado slices and a light cucumber radish salad provide refreshing contrast to the rich casserole.
Variations
Adapt the recipe seasonally using summer vegetables like poblanos and squash, or winter options like butternut squash and kale. Experiment with different beans or add queso fresco between layers.
Storage Instructions
Cool completely before storing. Use airtight containers with parchment between layers. Reheat covered with foil and a sprinkle of water. Freeze portions up to three months.

This casserole demonstrates how vegetarian cooking can deliver deep satisfaction and complex flavors. The combination of techniques and ingredients creates a dish that's greater than the sum of its parts.
Frequently Asked Questions
- → Can I prepare this casserole in advance?
- Definitely! Assemble and freeze it for up to three months, then sprinkle on the herbs and cheese just before baking.
- → Are there other veggies I can use?
- Sure thing! Swap any veggie for mushrooms, kale, Swiss chard, or even eggplant for a fun twist.
- → Can corn tortillas be used instead of flour ones?
- Of course! Both are delicious. Toast the tortillas lightly to get the best flavor and texture.
- → How can I avoid a soggy casserole?
- Toast the tortillas beforehand and avoid overloading it with sauce. Letting it sit for 10 minutes before serving helps too.
- → Is it okay to use canned black beans?
- Yep, canned beans are perfect! Just rinse and drain them well before mixing them into the dish.