Meatball Grinder

Ingredients

• Meatballs:
• 1 cup soft bread crumbs
• 1 cup dry bread crumbs
• 1/2 cup milk
• 1 pound ground beef
• 1 pound sweet Italian sausage
• 1 cup prepared marinara sauce
• 2 eggs
• 1 tablespoon minced garlic
• 1 tablespoon Italian seasoning
• 1 teaspoon red pepper flakes
• 1 cup olive oil for frying
• 1 cup prepared marinara sauce
• Filling:
• 1 tablespoon olive oil
• 1 onion, sliced
• 1 red bell pepper, sliced
• 1 serrano pepper, sliced
• 2 tablespoons Marsala wine
• salt and ground black pepper to taste
• Assembly:
• 4 Italian-style hoagie buns, split lengthwise
• 1 cup mascarpone cheese, divided
• 1/4 cup garlic basil spread (see footnote for recipe link)
• 4 cups shredded mozzarella cheese, divided
• 1/2 cup chopped fresh basil, divided
• 1/2 cup grated Parmesan cheese, divided