Move the oven rack to the middle position and preheat the oven to 350℉
Lightly grease a 9 by 13-inch baking dish with nonstick cooking spray.
Brown the ground beef in a large skillet.
Add diced tomatoes, black beans, corn, and taco seasoning, and cook on medium-high heat for 4-5 minutes.
Spread ½ cup of the enchilada sauce on the bottom of the prepared baking dish.
Take a tortilla, add ½ cup of the beef mixture to the middle, and top with 2 Tablespoons cup of shredded cheese.
Roll the tortilla up and place it seam-side down in the pan. Continue with the rest of the tortillas.
Pour the rest of the enchilada sauce over the filled and rolled tortillas.
Sprinkle the remaining cheese and the olives on top of the enchiladas.
Bake for 25-30 minutes until bubbly.
Sprinkle with chopped cilantro, serve, and enjoy.