Crockpot Meatballs

Name: Crockpot Meatballs
Prep time: 25 min
Cook time: 2 h
Total time: 2 h 25 min
Cuisine: Italian
Ingredients: 1 pound lean ground beef; 1/2 cup panko breadcrumbs; 2 tablespoons Worcestershire sauce; 2 tablespoons milk of choice (or water); 3 tablespoons finely chopped fresh parsley (plus additional for serving); 2 tablespoons finely grated Parmesan cheese (plus additional for serving); 1 teaspoon Italian seasoning; 1/2 teaspoon kosher salt; 1/2 teaspoon onion powder; 1/2 teaspoon garlic powder; 1/4 teaspoon ground black pepper; 2 large eggs; 1 (24-ounce) jar prepared tomato pasta sauce; 3 garlic cloves (minced (about 1 tablespoon)); 1/4 teaspoon red pepper flakes (optional); Cooked whole wheat pasta; Polenta; Instant Pot Brown Rice (or cauliflower rice); Hoagie buns and Provolone cheese (for making a sub)