You can make a vegetarian version of this taco pie using sautéed vegetables (such as cauliflower, zucchini, shitake mushrooms, or whatever you like, along with some chopped onion and jalapeno pepper).
Heat a pan over medium heat. Add the oil. Add the ground meat and jalapeno. Cook, stirring occasionally, until browned, about 5 minutes. Stir in 1 tablespoon of the Mexican seasoning blend and the garlic powder, sea salt, and ketchup. Simmer for 5 to 10 minutes on low heat to absorb any remaining moisture. Add a tablespoon or two of water if the meat starts to stick.
Layer 1 large tortilla onto the prepared pie plate, then spread one-third of the refried beans onto the tortilla. Layer one-third of the taco filling over the beans. Sprinkle on one-third of the corn. Top with one-third of the grated cheese blend. Repeat the layering two more times, then finish the top of the “pie” with a sprinkling of Mexican seasoning blend and fresh chopped cilantro.
Bake uncovered until the pie is hot and bubbly with a lightly browned top, 20 to 30 minutes. Let sit for 5 minutes, then slice into 6 pieces.
For a dairy-free version, use 1 to 2 cups of your favorite vegan cheese.
You can also make a single portion using smaller corn tortillas for a perfect easy meal for one. Simply assemble 2 layers instead of 3 and bake for 15 minutes covered then 5 minutes uncovered.