Slow Cooker Meatballs Marinara (Printable Version)

Tender meatballs simmered in rich marinara sauce, ideal for easy, flavorful gatherings and celebrations.

# What You Need:

→ Meatballs

01 - 1.5 lbs ground beef (80/20 blend)
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 whole 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 Steps:

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 enhanced flavor, broil meatballs on high for 3-4 minutes, turning once, until lightly browned. This step is optional.
04 - In a skillet over medium heat, warm olive oil. Add onion and garlic; sauté 3-4 minutes until softened and fragrant.
05 - Transfer sautéed onion and garlic to slow cooker. Add marinara sauce, basil, oregano, salt, and pepper. Stir to combine.
06 - Gently nestle 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 internal temperature of 160°F.
08 - Serve hot, garnished with extra Parmesan cheese and fresh parsley if desired.

# Expert Advice:

01 -
  • They practically cook themselves while you handle everything else—four hours of zero stress.
  • Ground pork mixed with beef gives you that restaurant depth without any fuss or fancy technique.
02 -
  • Don't overmix the meat mixture—I learned this the hard way by making dense little pucks instead of tender meatballs that melt in your mouth.
  • Check that internal temperature at 160°F; undercooked meatballs are genuinely dangerous, but overcooked ones taste like wood, so get a thermometer.
03 -
  • If your sauce tastes thin or watery, crack the slow cooker lid slightly for the last 30 to 45 minutes so it reduces and intensifies.
  • A pinch of crushed red pepper flakes adds a whisper of heat without shouting about it—taste as you go and adjust to your crowd.
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