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Slow Cooker Monster Meatball Subs

Slow Cooker Monster Meatball Subs are the ultimate comfort food, featuring juicy meatballs simmered in rich marinara sauce and topped with gooey mozzarella cheese. Perfect for game nights or family dinners, these hearty sandwiches bring flavor and satisfaction to any occasion. With minimal prep time and the slow cooker doing all the work, you can impress your guests while enjoying a deliciously easy meal.

Ingredients

Scale
  • 1 lb lean ground beef
  • 1 cup Italian-style breadcrumbs
  • 1 large egg
  • ½ cup freshly grated Parmesan cheese
  • 2 cups marinara sauce (store-bought or homemade)
  • 4 soft hoagie rolls
  • 1 cup shredded mozzarella cheese

Instructions

  1. In a large bowl, combine ground beef, breadcrumbs, Parmesan cheese, egg, salt, and pepper. Mix gently until just combined.
  2. Roll the mixture into large balls (about the size of golf balls) and place them on a parchment-lined baking sheet.
  3. Optional: Brown the meatballs in a skillet over medium heat until browned on all sides for added flavor.
  4. Place the meatballs in your slow cooker and pour marinara sauce over them. Cover and cook on low for 6 hours or high for 3 hours until cooked through.
  5. Once ready, spoon meatballs onto hoagie rolls and top generously with shredded mozzarella cheese.
  6. Optional: Broil subs for 2 minutes to melt the cheese until bubbly and golden brown.

Nutrition

Keywords: - For a lighter option, substitute ground beef with turkey or chicken. - Customize your subs by adding sautéed peppers or onions into the marinara sauce. - Store leftovers in an airtight container in the fridge for up to three days.