Preheat oven to 350 degrees.
Heat the enchilada sauce in a saucepan until warm.
Spread 1 cup of enchilada sauce in the bottom of a 13 x 9 baking dish.
Mix together the beans, chopped onion, corn, olives, and green chilies.
Dip the corn tortilla in the warm enchilada sauce (this will keep it from tearing when rolling).
Place the dipped tortilla on a plate and add a thick line of the bean mixture down the middle.
Roll up the filled tortilla and place it seam side down in the baking dish.
Repeat with the remaining tortillas, placing them close together in the baking dish.
Pour the remaining sauce over the enchiladas in the baking dish.
Top the enchiladas with your favorite garnishes such as jalepenos, cilantro, and chopped yellow or green onions.
Cover the dish with parchment paper and foil then bake for approximately 45 minutes.
Let rest for approximately 5 minutes before serving.
Serve with salsa, guacamole or your favorite condiment.