Slow Cooker Meatballs | Dinner Recipes | Umami

Ingredients

• 1 1/2 pounds ground beef (I use 90% lean)
• 3/4 cup Italian breadcrumbs
• 1/4 cup chopped fresh parsley (plus more for serving)
• 1 teaspoon minced garlic
• 1/2 cup minced onion
• 1 egg
• 1/3 cup grated parmesan cheese (plus more for serving)
• 1 teaspoon salt
• 1/4 teaspoon pepper
• cooking spray
• 28 ounce jar marinara sauce
• 16 ounce can crushed tomatoes
• 15 ounce can tomato sauce