1. Heat oven to 350 degrees F. Prepare two baking sheets with parchment paper.
2. Combine ground beef, egg, beans and liquid, corn, cheese, chili seasoning, and salt in a large bowl and mix thoroughly.
3. Roll meatballs about 1 1/2 inches in diameter and place on prepared baking sheets. Bake for 25 to 28 minutes until cooked through.
4. Cut cornbread into 2-inch squares and thread onto skewers with meatballs. Mix sour cream with cilantro and serve.