Meatball Sub Sandwiches feature homemade meatballs covered in tangy marinara sauce, topped with gooey fontina (or mozzarella cheese) AND provolone cheese, all loaded on a hoagie roll! Top with fresh basil, red pepper flakes, and grated parmesan cheese for extra flavor. And serve with plenty of napkins! Meatball Sandwiches Sunday night is SUB NIGHT in…
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