Preheat the oven to 375 degrees F.

Heat oil in a skillet over medium-high heat. Add bell pepper, onion, garlic, and salt, cooking until onion softens, about 5 minutes. Add ground beef and cook until browned, about 5-7 minutes.

Add ketchup, mustard, brown sugar, Worcestershire sauce, and black pepper. Cook for 1 minute, stirring constantly. Stir in hot sauce, tomato paste, and water. Bring to a simmer for 5 minutes until thickened. Remove from heat and smooth mixture in skillet, topping with pickle slices.

In a bowl, mix cornbread mix, egg, milk, sour cream, cheddar cheese, and remaining hot sauce until combined. Pour batter over meat mixture.

Bake in the oven for 23 to 25 minutes or until golden brown and bubbly.