INGREDIENTS
1 lb ground beef
1 tsp salt
½ tsp pepper
1 tsp onion powder
1 tsp garlic powder
½ panko bread crumbs
1 egg
¼ milk
12-24 cheddar cheese cubes, depending on the size of the meatballs
Sub rolls, or other longer bakery roll

For garnish
Cooked bacon
sliced tomatoes
Lettuce
Ketchup
Mustard
Pickle spear
    
INSTRUCTIONS
1. In a large bowl, mix together ground beef, salt, pepper, onion and garlic powders, bread crumbs, egg, and milk.
2. Once well mixed, scoop mixture into a loose ball and insert a cheese cube into the center. Then form a tight ball and place on a baking sheet.
3. Bake at 350 for 20-25 minutes.
4. Once baked, add to a sub roll adorned with lettuce, tomato, pickle, bacon.  
5. Top with ketchup and mustard and serve immediately.