Cheeseburger Mini Muffins Recipe

Ingredients

• 1/2 pound ground beef
• 1 small onion, finely chopped
• 2 1/2 cups all-purpose flour
• 1 tablespoon sugar
• 2 teaspoons baking powder
• 1 teaspoon salt
• 3/4 cup ketchup
• 3/4 cup milk
• 1/2 cup butter, melted
• 2 eggs
• 1 teaspoon prepared mustard
• 2 cups (8 ounces) shredded cheddar cheese