In a large bowl, combine ground sausage, salt, pepper, egg, Parmesan cheese and breadcrumbs. Mix well with your hands or a wooden spoon. Divide into 12 equal pieces, shaping into balls.
Preheat broiler. Prepare 4 8-inch sub rolls. Create a well in the top of each roll, large enough to hold the meatballs. Be careful to not slice through to the bottom of the rolls.
Heat 2 tablespoons of olive oil in a 10-inch skillet over medium-high heat. Sear meatballs on all sides. Reduce heat to medium-low. Add marinara sauce. Cover and cook until meatballs are no longer pink in the center and internal temperature is 160°F.
Add 2-3 slices of mozzarella to the cavity in each roll. Fill with meatballs and marinara sauce. Place on a baking sheet. Broil until cheese is fully melted and bread is lightly charred.
Serve with freshly grated Parmesan cheese.
Notes
*If desired, medium or sweet sausage may be substituted for the hot sausageAn original recipe from Baked by Rachel
Nutritional information is provided as a courtesy and is an estimate only. Nutrition information can vary for a variety of reasons. For the most accurate data, use your preferred nutrition calculator with the actual ingredients you used to make this recipe.
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