Mini Meatball Sandwiches

1 lb ground beef
1/2 c. Panko or Breadcrumbs
1 clove garlic, minced
1/2 tsp salt
Black Pepper
1/2 c. milk
2 Tbsp Olive Oil
1/2 onion, diced
1 jar marinara sauce
12 Dinner rolls
12 Slices Provolone Cheese
1. Mix meat with bread crumbs, garlic, salt, pepper and milk. Knead together with hands. Roll into heaping tablespoon sized meatballs.
2. Heat olive oil in LARGE skillet over medium heat. Add onion into skillet and cook for one minute.
3. Add meatballs and brown one minute. If your skillet isn't that big you might have to do this in two different batches. Flip the meatballs over gently with a fork and brown the other side another minute. Add enough marinara over meatballs so they won't burn. I would guess I used about 1/2 of the jar. Shake pan throughout cooking to mix. Simmer with lid on for about 20 minutes.
4. Put Provolone cheese on bun and spoon meatballs and sauce on bun.