INGREDIENTS
2 lb
ground chuck or ground beef
1/2 cup
panko or other breadcrumbs
1/2 cup
milk
2 cloves
garlic, minced
1/2 tsp
salt
Freshly ground black pepper
2 tbsp
olive oil
1/2
medium onion, diced
1
large jar marinara sauce
12
dinner rolls or slider rolls
2 cups
grated mozzarella