Preheat oven to 400 degrees F. Line a baking sheet with parchment paper and set aside.
In a large mixing bowl, lightly beat egg. Add ground chicken, bread crumbs, Parmesan cheese, olive oil, Worcestershire sauce, parsley, Italian seasoning, salt, garlic and onion powders and red pepper flakes.
Use your hands or a wooden spoon to mix ingredients evenly until just combined, being careful not to overmix.
Shape the mixture into 12 to 15 meatballs, about 1- to 1 ½- inches in size. Arrange separately on baking sheet.
Bake in upper third of the oven for 18 to 21 minutes, until cooked through. Serve over pasta with pasta sauce, in subs, or with cocktail meatball sauce.
Notes
Freeze uncooked meatballs for up to 3 months or cooked meatballs for up to 2 months. Thaw meatballs and cook or reheat prior to serving.