In a large bowl, combine the ground beef, pork, breadcrumbs, onion, Parmesan cheese, garlic, Italian seasoning, salt, black pepper, and red pepper flakes.
Mix well with your hands to combine.
Shape into 1-inch balls.
Place meatballs onto a greased baking sheet.
Bake in preheated oven for 20 minutes.
Meanwhile, in a medium bowl, whisk together the ketchup, soy sauce, Worcestershire sauce, and honey.
Remove the meatballs from the oven, and brush with the sauce mixture.
Return to oven, and bake an additional 20 minutes.
Serve warm.
Interesting Facts
Cocktail meatballs date back to the 1920s.
They are often served as an appetizer or as part of a main course.
The sauce for these meatballs is a classic combination of ketchup, soy sauce, Worcestershire sauce, and honey.
Ground pork adds flavor and juiciness to the meatballs.