Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large bowl, combine ground chicken, egg, breadcrumbs, Parmesan cheese, parsley, minced garlic, salt, pepper, onion powder, and dried oregano. Mix until just combined, being careful not to overwork the mixture.
Form the mixture into 1-inch balls and place them evenly spaced on the prepared baking sheet.
Bake in the preheated oven for 20 minutes or until the meatballs are cooked through and have an internal temperature of 165°F (74°C).
Serve the chicken meatballs hot with your favorite sauce, over pasta, or enjoy them as a stand-alone snack.