Preheat the oven to 400°F (200°C). Line a baking sheet with parchment paper or lightly spray it with nonstick cooking spray.
In a large mixing bowl combine the ground chicken, salt, black pepper, breadcrumbs (or crushed crackers), egg, grated Parmesan, garlic powder (or minced garlic), onion powder (or diced onion), dried oregano, and chopped parsley.
Mix the ingredients with your hands, a meat chopper, or a spoon until just combined; do not overwork the mixture.
Scoop and roll the mixture into about 25 small meatballs (roughly 1 inch each) and place them on the prepared baking sheet about 1/2 inch apart.
Bake for 25–30 minutes, or until the meatballs are cooked through and reach an internal temperature of 165°F (74°C).
Remove from the oven and let rest briefly before serving.