01 - Preheat oven to 400°F. Line a baking tray with parchment paper or lightly grease with oil.
02 - In a skillet, heat 1 tablespoon olive oil over medium heat. Sauté diced onion for 3 to 4 minutes until softened. Add minced garlic and cook 1 minute longer. Allow mixture to cool slightly.
03 - In a large mixing bowl, combine ground chicken, sautéed onion and garlic, sage, thyme, salt, black pepper, and optional nutmeg.
04 - Add breadcrumbs and lightly beaten egg. Gently mix until just combined to avoid overworking the mixture.
05 - With damp hands, shape the mixture into balls, each about 1 heaping tablespoon in size, and arrange on the prepared baking tray.
06 - Brush or drizzle the remaining olive oil over the surface of the formed balls.
07 - Bake for 20 to 25 minutes, turning halfway, until balls are golden brown and the internal temperature reaches 165°F.
08 - Serve hot with your choice of dip or as part of a meal.