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Slow Cooker Meatball Subs

Slow Cooker Meatball Subs

Slow Cooker Meatballs Subs are enjoyed by everyone. Great weeknight dinner!

Course Main Course
Cuisine Italian
Keyword Slow Cooker Meatball Subs
Prep Time 25 minutes
Cook Time 2 hours 25 minutes
Total Time 2 hours 50 minutes
Servings 6
Calories 365 kcal


  • Ingredients
  • 1 lb lean ground beef
  • 1/2 cup dry breadcrumbs
  • 2 tablespoons finely chopped onions or 1⁄4-1⁄2 teaspoon onion powder
  • 1 teaspoon salt
  • 1/2 teaspoon Worcestershire sauce
  • 1 egg
  • 1 tablespoon Parmesan cheese grated
  • 1 32 ounce jar spaghetti sauce
  • 6 -8 sub rolls (hoagie rollor 6 -8 hot dog buns
  • mozzarella cheese sliced or shredded


  1. Directions
  2. Place first seven ingredients in large bowl. Mix thoroughly with your hands just until combined. (I wear food prep gloves.) Shape into approximately 30 1-inch balls.
  3. Bake in an ungreased oblong pan (13x9x2) in a 400°F oven until light brown, 20-25 minutes. OR: microwave meatballs in an ungreased baking dish, 6 minutes on High, turning once. OR: cook over medium heat in frying pan, turning occasionally, until brown, about 20 minutes.
  4. Combine the cooked meatballs and spaghetti sauce in crock pot. Cook on low for about 2 hours. If you cook longer, stir every hour or so.
  5. Place meatballs and sauce in buns/rolls and top with mozzarella cheese. Bake in the oven for about 6 minutes to get toasty
  6. (A friend places the raw meatballs & sauce in the crock-pot and cooks them for 8+ hours on low, but I have never tried this.).