Preheat the oven to 400°F (200°C). Line a baking sheet with foil or parchment paper and lightly coat it with cooking spray.
In a large bowl, combine the ground chicken, egg, panko breadcrumbs, Parmesan cheese, olive oil, garlic powder, onion powder, salt, pepper, and any optional seasonings.
Mix until just combined. Avoid overmixing to keep the meatballs tender.
Roll the mixture into approximately 30 evenly sized meatballs and arrange them on the prepared baking sheet, leaving a little space between each one.
Bake the Baked Chicken Meatballs for 25–30 minutes, or until the internal temperature reaches 165°F (74°C).
Serve immediately with your favorite sauce, pasta, rice, vegetables, or enjoy them as an appetizer.