This Mexican tortilla casserole is a flavorful and satisfying vegetarian dish that is perfect for a quick and easy dinner. Made with layers of tortillas, black beans, corn, and cheese, this casserole is a crowd-pleaser. The tortillas are layered with a mixture of black beans, corn, and salsa, and then topped with cheese. The casserole is then baked until the cheese is melted and bubbly, creating a deliciously cheesy and comforting dish. Serve it with a side of guacamole and sour cream for a complete and satisfying meal.