INGREDIENTS
2 tbsp
extra virgin olive oil
1 lb
lean ground beef
1 large
egg
1/2 cup
white onion
1/2 cup
panko bread crumbs
1/2 cup
parmesan cheese
1/4 cup
milk
2 tbsp
garlic
1 tbsp
worcestershire sauce
1 tbsp
yellow mustard
1 tsp
hot sauce
1/2 tsp
kosher salt
1/4 tsp
black pepper
1/4 tsp
garlic salt
10 inches
mozzarella balls
3
sub roll