Cowboy Cornbread

Ingredients (8)

• + 2 pounds ground beef add to pantry
• + 1 small onion, chopped add to pantry
• + 2 (7 ounce) packages sweet yellow cornbread mix (such as Martha White®) add to pantry
• + 1 cup milk add to pantry
• ✓ 2 eggs
• ✓ 1 (15 ounce) can creamed corn
• + 2 cups shredded Cheddar cheese add to pantry
• + 2 tablespoons butter, or more to taste add to pantry