Meatball Sub Sandwich

Step 1
Preheat oven to 425 degrees F.

Step 2
Toast one bun until golden brown, then place in blender and chop until fine to create crumbs.

Step 3
Place the bread crumbs in a large bowl and add milk. Let soak for 5 minutes.

Step 4
Add ground beef, eggs, Parmesan, Italian seasoning, onion powder, garlic powder, and salt and pepper to the bread crumb mixture and combine well.

Step 5
Divide the mixture into 16 golf ball-sized meatballs, and place on an oiled baking pan.

Step 6
Bake meatballs in oven for 10 minutes.

Step 7
While meatballs are baking, heat marinara in a large pot over medium-high heat. Place the cooked meatballs in the marinara and simmer for 15 minutes.

Step 8
Meanwhile, toast the remaining buns, then evenly distribute arugula or spinach, meatballs and mozzarella onto each bun.

Step 9
Garnish with chopped basil and/or crushed red pepper and serve.