Slow Cooker Meatballs Marinara (Printable)

Flavorful meatballs cooked slowly in rich marinara sauce, ideal for gatherings or a comforting dinner.

# What you'll need:

→ Meatballs

01 - 1.5 lbs ground beef (80/20)
02 - 0.5 lb ground pork
03 - 0.5 cup Italian breadcrumbs
04 - 0.33 cup grated Parmesan cheese
05 - 2 large eggs
06 - 0.25 cup milk
07 - 3 cloves garlic, minced
08 - 2 tbsp fresh parsley, chopped
09 - 1.5 tsp salt
10 - 0.5 tsp black pepper
11 - 1 tsp dried oregano
12 - 0.5 tsp crushed red pepper flakes

→ Marinara Sauce

13 - 48 oz marinara sauce
14 - 1 small onion, finely chopped
15 - 2 cloves garlic, minced
16 - 1 tbsp olive oil
17 - 1 tsp dried basil
18 - 1 tsp dried oregano
19 - Salt and pepper to taste

# How to make it:

01 - In a large mixing bowl, combine ground beef, ground pork, breadcrumbs, Parmesan, eggs, milk, garlic, parsley, salt, pepper, oregano, and red pepper flakes. Mix gently until just combined without overmixing.
02 - Shape mixture into 1.5-inch balls and place on a parchment-lined baking sheet.
03 - For firmer meatballs, broil on high for 3 to 4 minutes, turning once, until lightly browned. This step is optional but enhances flavor.
04 - In a skillet over medium heat, warm olive oil. Add onion and garlic; sauté for 3 to 4 minutes until softened and fragrant.
05 - Add sautéed onion and garlic, marinara sauce, basil, oregano, salt, and pepper to the slow cooker. Stir to combine.
06 - Gently nestle the meatballs into the sauce in the slow cooker.
07 - Cover and cook on LOW for 4 hours (or HIGH for 2 hours), until meatballs reach an internal temperature of 160°F.
08 - Serve hot, garnished with extra Parmesan and parsley if desired.

# Expert Suggestions:

01 -
  • Effortless slow cooker convenience—just set it and forget it
  • Perfect for feeding a crowd with minimal hands-on time
  • Tender, juicy meatballs with authentic Italian-American flavor
  • Versatile enough to serve as an appetizer or main course
  • Make-ahead friendly and freezer-safe for easy meal planning
02 -
  • Use a cookie scoop to form uniform meatballs for even cooking
  • Don't skip the milk—it keeps the meatballs incredibly tender
  • Let the meatballs rest in the sauce for 10 minutes before serving for best flavor
  • Store leftovers in an airtight container in the fridge for up to 4 days or freeze for up to 3 months
  • Reheat gently on the stovetop or in the microwave to prevent drying out
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