Preheat oven to 375 degrees.
Prepare corn bread mix according to package directions with requited ingredients. Add 2 tablespoons of sugar to the corn bread mixture, combine and set aside.
Heat cast iron skillet over medium heat. Add ground beef and season with salt and pepper to taste. Use a wooden spoon to cook ground beef until brown.
Once beef is fully cooked, poor into a strainer to drain grease. Once the fat has been drained, add the beef back to the skillet.
Add black beans, corn, olives, enchilada sauce, and combine.
Next, mix in cheese.
Once cheese has melted, top the beef mixture with the corn bread mix.
Place skillet in a preheated oven and cook until the corn bread topping is golden brown, about 25 minutes. If your cornbread is lighter than you like, turn on broiler and watch it carefully until it reaches your desired color.
Serve with sour cream!