Fiesta Lasagna Vegetarian Mexican Casserole
INTRODUCTION
If you’re looking for a dish that combines the heartiness of lasagna with the vibrant flavors of Mexican cuisine, you’re in for a treat! This Fiesta Lasagna Vegetarian Mexican Casserole is not only delicious but also a healthy version that’s perfect for any occasion. It’s a layered dish that’s loaded with vegetables, beans, and cheese, making it a balanced meal that’s high in protein and fiber.
WHY YOU WILL LOVE THIS RECIPE
This recipe is a great option for meal prep. It comes together quickly and can be easily stored for later in the week. Whether you’re on a weight loss journey or just looking for a lighter meal, this casserole has you covered. With its combination of wholesome ingredients, you won’t just enjoy a satisfying dish, but you’ll also nourish your body. Plus, each serving is packed with protein, making it a perfect high protein meal for fitness enthusiasts.
HOW TO MAKE Fiesta Lasagna Vegetarian Mexican Casserole
EQUIPMENT NEEDED
- 9 inch cake pan or pie tin
- Cooking spray
- Oven
- Cooking utensil for spreading layers
Ingredients You’ll Need
- 3 10 inch whole wheat tortillas or your favorite
- 16 ounce can fat-free refried beans or regular
- 16 ounce jar chunky salsa (your favorite)
- 10.8 ounce package Bird’s Eye Seasoned Southwestern Corn
- 4 ounces fresh baby spinach
- 1 1/2 cups reduced fat fiesta blend shredded cheese or any mild shredded cheese
- 1/4 cup green onion, chopped
STEP-BY-STEP INSTRUCTIONS
- Preheat your oven to 375 degrees F.
- Spray a 9-inch cake pan or pie tin with cooking spray.
- Place one of the tortillas in the bottom of the pan, letting the edges go up the sides.
- Spread about half of the refried beans on the tortilla, then add about a third of the salsa.
- Distribute about half of the corn evenly on top.
- Spread out a handful of the spinach and top with about a third of the cheese.
- Place the second tortilla on top, trimming edges if larger than the pan.
- Repeat the layering process with the remaining beans, salsa, corn, spinach, and cheese.
- Place the third tortilla in the pan, trim edges if necessary, and top with the remaining salsa and cheese.
- Finally, sprinkle with chopped green onion.
- Bake for 25-30 minutes until the cheese is melted and bubbly.
HOW TO SERVE Fiesta Lasagna Vegetarian Mexican Casserole
To serve this Fiesta Lasagna, cut it into generous portions. Each serving is hearty but can be balanced with side dishes. Serve it alongside a simple green salad or some fresh sliced avocado for a heart-healthy addition. Control portions by keeping servings in smaller plates to avoid overeating.
STORAGE & FREEZING: Fiesta Lasagna Vegetarian Mexican Casserole
This vegetarian casserole is fantastic for storage! After it cools, you can keep any leftovers in an airtight container in the refrigerator for up to three days. If you want to enjoy it later, you can also freeze it. Just make sure to wrap it tightly in plastic wrap or aluminum foil before placing it in the freezer. When you’re ready to eat, just bake from frozen, adding a little time to the cooking process.
SERVING SUGGESTIONS
Serve your Fiesta Lasagna with a side of fresh fruit to add natural sweetness to the meal. A mixed green salad drizzled with a light vinaigrette can also enhance the dish while keeping it light and refreshing. This kind of balance is perfect for anyone looking for healthier eating options.
VARIATIONS
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Healthier Version: Swap out the reduced-fat cheese for a dairy-free cheese alternative, making it suitable for a vegan lifestyle. You can also use lentils instead of refried beans to boost the fiber content.
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High-Protein or Low-Carb Version: To up the protein, consider layering in some cooked quinoa or adding black beans between the layers. For a low-carb version, try using thinly sliced zucchini in place of the tortillas.
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Air Fryer Version: If you have an air fryer, you can make a smaller version of this recipe. Layer the tortillas and ingredients in a smaller pan that fits in the air fryer basket. Cook at 370 degrees F for about 15-20 minutes until the cheese is melted and bubbly.
FAQs
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Is this recipe diabetic-friendly?
Yes, this Fiesta Lasagna uses whole wheat tortillas and plenty of vegetables that fit well within a diabetic meal plan. Just be mindful of portion sizes. -
How can I make this casserole lower in calories?
Using fat-free refried beans, reduced-fat cheese, and making smaller portions are great ways to cut down on calories. -
How do I store and reheat leftovers?
Store leftovers in an airtight container in the fridge for up to three days. To reheat, place it in the oven at 350 degrees F until warmed through, or microwave in small portions. -
Can I make this casserole ahead of time?
Absolutely! You can assemble this casserole ahead of time and store it in the refrigerator for up to two days before baking it.
MAKE-AHEAD TIPS FOR Fiesta Lasagna Vegetarian Mexican Casserole
This casserole is perfect when it comes to meal prep! You can assemble it up to two days in advance. Keep it covered in the fridge until you’re ready to bake it. If you’re looking to save even more time, consider prepping the ingredients—like chopping the spinach and green onions or measuring out the salsa and beans—during the week. All of these steps help you expedite cooking during your busy weeknights.
With these easy instructions, you’ll have a delicious, healthy, vegetarian dish, perfect for any meal. This Fiesta Lasagna will surely become a family favorite, making it easier to enjoy nutritious meals without sacrificing flavor. Happy cooking!

Fiesta Lasagna Vegetarian Mexican Casserole
Ingredients
Method
- Preheat your oven to 375 degrees F.
- Spray a 9-inch cake pan or pie tin with cooking spray.
- Place one of the tortillas in the bottom of the pan, letting the edges go up the sides.
- Spread about half of the refried beans on the tortilla, then add about a third of the salsa.
- Distribute about half of the corn evenly on top.
- Spread out a handful of the spinach and top with about a third of the cheese.
- Place the second tortilla on top, trimming edges if larger than the pan.
- Repeat the layering process with the remaining beans, salsa, corn, spinach, and cheese.
- Place the third tortilla in the pan, trim edges if necessary, and top with the remaining salsa and cheese.
- Finally, sprinkle with chopped green onion.
- Bake for 25-30 minutes until the cheese is melted and bubbly.

