# What You'll Need:
→ Meatballs
01 - 1 pound ground beef
02 - ½ pound ground pork
03 - 1 large egg
04 - ½ cup breadcrumbs
05 - 2 tablespoons milk
06 - 2 tablespoons grated Parmesan cheese
07 - 2 cloves garlic, minced
08 - 1 tablespoon chopped fresh parsley
09 - 1 teaspoon dried oregano
10 - 1 teaspoon salt
11 - ½ teaspoon black pepper
→ Marinara Sauce
12 - 2 cups marinara sauce (store-bought or homemade)
13 - 1 tablespoon olive oil
14 - 1 small onion, finely chopped
15 - 2 cloves garlic, minced
→ Assembly
16 - 4 long sandwich rolls (sub or hoagie rolls)
17 - 8 slices provolone cheese
18 - 1 tablespoon butter (optional, for toasting rolls)
19 - Fresh basil or parsley, for garnish (optional)
# How To Make It:
01 - Heat oven to 400°F (200°C).
02 - Combine ground beef, ground pork, egg, breadcrumbs, milk, Parmesan, garlic, parsley, oregano, salt, and black pepper in a large bowl. Mix until just combined.
03 - Shape mixture into sixteen 1¼-inch meatballs.
04 - Arrange meatballs on a parchment-lined baking tray and bake for 15 to 18 minutes until browned and cooked through.
05 - While meatballs bake, heat olive oil in a saucepan over medium heat. Sauté onion until soft, about 3 minutes, then add garlic and cook for 1 more minute.
06 - Add marinara sauce to the saucepan and bring to a simmer. Transfer baked meatballs into the sauce and cook gently for 10 minutes, stirring occasionally.
07 - If desired, split rolls lengthwise, lightly butter the insides, and toast under broiler or in a pan until golden.
08 - Place four meatballs with sauce inside each roll and top with two provolone slices.
09 - Place sandwiches on a baking tray and broil for 2 to 3 minutes until cheese is melted and bubbly.
10 - Garnish with fresh basil or parsley and serve hot.