Heat oven to 375°F. Spread 1/2 cup of the enchilada sauce on the bottom of a 9-x-13-inch baking dish.
Heat a comal or cast iron skillet over medium heat for at least 3 minutes, or until hot but not smoking. Warm the tortillas on the comal until soft and pliable but not toasted. Keep warm by wrapping them in a clean kitchen towel or tortillas warmer.
Spread 2 tablespoons of the beans on a tortilla then add 2 tablespoons of the cheese and 1 tablespoon of the corn. Roll to close and lay it in the prepared baking dish seam-side down so they stay closed. Repeat with remaining tortillas.
Cover the enchiladas with the sauce, then top with the remaining cheese.
Bake until the sauce is bubbling and the cheese is melted, and browned in spots, about 30- 35 minutes. If you'd like a little more browning, stick under the broiler for 2-3 minutes.
While the enchiladas are baking, prepare any garnishes you'd like to add.
Let enchiladas rest for 10 minutes then top with desired garnishes and serve.