Healthy Tex-Mex Lasagna

If you love the comforting layers of a classic lasagna but crave bold, southwestern flavors and a lighter twist, this Healthy Tex-Mex Lasagna is for you. It layers sautéed veggies and spinach with corn tortillas, a smoky tomato base, briny olives, and a creamy avocado-lime sauce that brightens every bite. It’s simple enough for a weeknight but special enough for guests, and the whole dish comes together with pantry-friendly ingredients.

Why you’ll love this version

This take on lasagna swaps wheat noodles for corn tortillas and uses a veggie-forward filling so each serving feels lighter but still satisfying. Turmeric, smoked paprika, and chili powder bring depth and a gentle warmth, while agave adds a touch of sweetness to balance the tomato’s acidity. The avocado-lime crema adds creaminess without relying on dairy, and fresh cilantro and green onions finish the dish with bright herbaceous notes.

Ingredients

• 1 red onion, large, diced (about 2 cups)
• 2 cloves garlic, minced
• 1 green bell pepper, chopped
• 1 cup portabella mushrooms, chopped
• 2 cups baby spinach, chopped
• 1/2 cup black olives, sliced
• 14 ounces tomato sauce, can
• 1/2 cup water
• 1 teaspoon olive oil
• 1 tablespoon turmeric
• 1 tablespoon smoked paprika
• 1 tablespoon chili powder
• 1/2 tablespoon agave nectar
• salt and pepper to taste
• 10 corn tortillas
• 2 avocados, ripe, medium
• 2 tablespoons lime juice
• 1/4 cup coconut milk, canned
• 1/2 cup water
• 1 teaspoon salt
• 1/4 teaspoon pepper
• 1 1/2 cup cilantro, packed
• green onions, sliced, for garnish
• cilantro, chopped, for garnish

Make-Ahead Tips

The sautéed vegetable mixture keeps in the fridge for up to 3 days, and the avocado-lime crema stays fresh for 1–2 days when tightly covered. If you plan to assemble the lasagna later, slightly under-bake it by 5–7 minutes and finish baking just before serving for the best texture.

Equipment

• Large skillet
• Spatula or wooden spoon
• Blender or food processor
• 9×13-inch baking dish (or similar)
• Mixing bowls

Step-by-step Instructions

Follow these clear, stepwise directions to build and bake your Healthy Tex-Mex Lasagna. The sequence below follows the ingredient list and keeps amounts exactly as listed.

1. Prep the produce and pantry items: Dice the red onion so you have about 2 cups. Mince the 2 cloves of garlic. Chop the green bell pepper and 1 cup portabella mushrooms. Chop the 2 cups baby spinach roughly. Slice 1/2 cup black olives. Measure the 14 ounces of tomato sauce and 1/2 cup water. Have the spices ready: 1 tablespoon turmeric, 1 tablespoon smoked paprika, 1 tablespoon chili powder, and 1/2 tablespoon agave nectar. Warm the 10 corn tortillas briefly so they’re pliable (wrap in a towel and microwave 20–30 seconds or heat individually in a dry skillet for 10–15 seconds per side).
2. Sauté the aromatics: Heat 1 teaspoon olive oil in a large skillet over medium heat. Add the diced red onion and cook, stirring occasionally, until the onion becomes translucent and fragrant, about 4–6 minutes. Add the minced garlic and cook for 30–60 seconds until aromatic, taking care not to let the garlic brown.
3. Add the vegetables: Add the chopped green bell pepper and chopped portabella mushrooms to the skillet. Cook, stirring occasionally, until the peppers soften and the mushrooms release their moisture, about 6–8 minutes. Stir in the chopped baby spinach and cook until wilted, about 1–2 minutes. Season lightly with salt and pepper to taste.
4. Make the tomato-spice sauce in the skillet: Pour the 14 ounces of tomato sauce and 1/2 cup water into the skillet with the vegetables. Stir in 1 tablespoon turmeric, 1 tablespoon smoked paprika, 1 tablespoon chili powder, and 1/2 tablespoon agave nectar. Simmer the mixture over low heat for 4–6 minutes, allowing the flavors to meld and the sauce to thicken slightly. Taste and adjust salt and pepper as needed.
5. Fold in the olives: Stir the 1/2 cup sliced black olives into the tomato-vegetable mixture until evenly distributed. Remove the skillet from heat and set aside while you prepare the avocado-lime crema.
6. Prepare the avocado-lime crema: In a blender or food processor, combine the 2 ripe avocados, 2 tablespoons lime juice, 1/4 cup canned coconut milk, 1/2 cup water, 1 teaspoon salt, 1/4 teaspoon pepper, and 1 1/2 cup packed cilantro. Blend until smooth and creamy. If the mixture is too thick, add a tablespoon or two more water and blend again until you reach a pourable, spreadable consistency. Taste and adjust lime, salt, or cilantro to your liking.
7. Assemble the lasagna: Preheat your oven to 375°F (190°C). Spread a thin layer (about 1/3 to 1/2 cup) of the tomato-vegetable sauce on the bottom of a 9×13-inch baking dish to prevent sticking. Place 3 corn tortillas in a single layer over the sauce, tearing a tortilla if necessary to cover the dish evenly. Spread approximately one-third of the remaining tomato-vegetable mixture over the tortillas. Drizzle or dollop about one-third of the avocado-lime crema on top of the sauce layer and gently spread it with a spatula. Repeat this layering process two more times: tortillas, tomato-vegetable mixture, and avocado-lime crema. Finish with the remaining tortillas on top and a light final drizzle of crema if desired.
8. Bake the assembled lasagna: Cover the baking dish loosely with foil and bake in the preheated oven for 20 minutes. After 20 minutes, remove the foil and bake an additional 10–12 minutes to allow the edges to crisp slightly and the layers to meld. Remove from the oven and let the lasagna rest for 5–10 minutes before slicing; this helps it set and makes serving cleaner.
9. Garnish and serve: Slice the lasagna into squares and garnish each portion with sliced green onions and chopped cilantro. Serve warm with extra avocado-lime crema on the side if you like, and offer lime wedges for squeezing over individual servings.

Serving Suggestions

This Healthy Tex-Mex Lasagna pairs beautifully with a crisp green salad, a side of charred corn, or a simple cucumber-tomato salsa. Make it part of a larger Tex-Mex spread alongside black beans and a light slaw, or keep it as the main event with warm tortillas for scooping.

Notes and Variations

• Protein add-in: To boost protein, stir in a can of rinsed and drained black beans or cooked lentils when you add the olives. Amounts are up to you but 1 to 2 cups works well without changing the dish’s balance.
• Make it smokier: Add a touch more smoked paprika or a pinch of ground cumin to deepen the smoky profile.
• Spice level: If you want heat, add a chopped jalapeño with the bell pepper or a pinch of cayenne to the tomato sauce.
• Dairy option: If you prefer a cheesy finish, sprinkle 1/2 to 1 cup of shredded cheese over the top before the final bake, keeping in mind this changes the flavor and richness.
• Crunch factor: For texture, top with toasted pumpkin seeds, chopped toasted pepitas, or a handful of crushed tortilla chips right before serving.

Storage and Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave for 1–2 minutes or warm in a 350°F (175°C) oven for 10–15 minutes until heated through. If the avocado-lime crema loses some brightness after chilling, stir in a squeeze more lime juice before serving.

Final Thoughts

This Healthy Tex-Mex Lasagna is a satisfying, flavor-forward dinner that brings together the best of both worlds: the layered comfort of lasagna and the bright, spicy-sweet elements of Tex-Mex cuisine. It’s flexible, full of vegetables, and easy to customize to your family’s tastes. Whether you’re feeding a crowd or planning meals for the week, this recipe delivers big flavor with fresh ingredients and simple technique.

Ready to bake? Gather your ingredients, preheat the oven, and enjoy a colorful, comforting meal that’s as delicious as it is nourishing.

Healthy Tex-Mex Lasagna

A layered, vegetarian Tex-Mex lasagna with a creamy avocado-cilantro sauce and a hearty vegetable-tomato filling.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 25 minutes mins

Total Time 40 minutes mins

Servings: 10 people

Ingredients Equipment Method Notes

Ingredients

  

• 1 large red onion diced (about 2 cups)
• 2 cloves garlic minced
• 1 medium green bell pepper chopped
• 1 cup portabella mushrooms chopped
• 2 cups baby spinach chopped
• 1/2 cup black olives sliced
• 14 ounces tomato sauce can
• 1/2 cup water
• 1 teaspoon olive oil
• 1 tablespoon turmeric
• 1 tablespoon smoked paprika
• 1 tablespoon chili powder
• 1/2 tablespoon agave nectar
• salt and pepper to taste
• 10 corn tortillas
• 2 avocados ripe, medium
• 2 tablespoons lime juice
• 1/4 cup coconut milk canned
• 1/2 cup water for sauce
• 1 teaspoon salt for sauce
• 1/4 teaspoon pepper for sauce
• 1 1/2 cups cilantro packed (for sauce)
• green onion sliced, for garnish
• cilantro chopped, for garnish

Equipment

• 9x11-inch baking dish
• Large Skillet
• Blender or food processor
• Spatula
• Knife
• Cutting Board

Method

 

1. Preheat the oven to 350°F (175°C) and lightly oil a 9×11-inch baking dish.
2. Heat 1 teaspoon olive oil in a large skillet over medium heat. Add the minced garlic and diced red onion and sauté until the onion is translucent, about 5 minutes.
3. Add the chopped portabella mushrooms, chopped green bell pepper, chopped spinach, and sliced black olives to the skillet and sauté until the vegetables are softened, about 5–7 minutes.
4. Stir in the 14-oz can tomato sauce and 1/2 cup water. Add turmeric, smoked paprika, chili powder, and agave nectar; season with salt and pepper to taste. Reduce heat to low, cover, and simmer a few minutes to meld flavors.
5. While the filling simmers, make the avocado-cilantro cream. Place avocado flesh, 2 tablespoons lime juice, 1/4 cup canned coconut milk, 1/2 cup water, 1 1/2 cups packed cilantro, 1 teaspoon salt, and 1/4 teaspoon pepper in a blender or food processor and blend until smooth.
6. Spread a thin layer of the avocado-cilantro cream on one side of each corn tortilla.
7. Assemble the lasagna: pour half of the vegetable-tomato filling into the bottom of the prepared baking dish and spread evenly. Place 5 of the cream-coated tortillas over the filling in a single layer.
8. Spread the remaining vegetable filling over the tortillas, then top with the remaining 5 cream-coated tortillas.
9. Cover the dish with foil and bake for 25 minutes. Remove from the oven and let sit a few minutes, then garnish with sliced green onion and chopped cilantro before serving.

Notes

• Use ripe avocados for a smoother cream sauce.
• Adjust chili powder to control spiciness.
• Slice tortillas if they overlap awkwardly when assembling.
• Simmer filling until excess liquid reduces slightly.