Creating this delicious casserole couldn’t be easier. Follow these steps to ensure the best results:

1. Brown the Meat: In a skillet over medium heat, brown the ground beef until fully cooked. Drain excess grease if necessary.
2. Mix Ingredients: In a large bowl, combine the black beans, kidney beans, corn, diced tomatoes, and taco seasoning. Mix well.
3. Combine: Add the cooked ground beef to the bean mixture, stirring until everything is evenly combined.
4. Transfer to Slow Cooker: Pour the mixture into your slow cooker, spreading it out evenly.
5. Prepare Cornbread Topping: In a separate bowl, prepare the cornbread mix according to the package instructions. Add the milk and egg, mixing until combined.
6. Layer Cornbread: Pour the cornbread batter over the beef mixture in the slow cooker. Use a spatula to spread it out evenly across the top.
7. Cook: Cover and cook on low for 6-8 hours or high for 3-4 hours, until the cornbread is lightly golden and cooked through.
8. Add Cheese: In the last 10-15 minutes of cooking, sprinkle the shredded cheese over the top. Cover again and let it melt.
9. Serve: Once everything is cooked, serve the casserole hot straight from the slow cooker.

These easy-to-follow steps will guide you to a hearty meal that brings comfort and satisfaction.