Preheat your oven to 200°C (400°F). Line a baking sheet with parchment paper or lightly grease it to prevent sticking.
In a large mixing bowl, combine the ground chicken, toasted breadcrumbs, beaten egg, minced garlic, grated Parmesan, chopped parsley, salt, and pepper. Gently mix everything together until just combined, being careful not to overmix.
Using your hands or a scoop, portion out the mixture into 1 1/2-inch (4 cm) balls, rolling gently to shape them evenly. Place each meatball on the prepared baking sheet, spacing them apart for even cooking.
Lightly brush each meatball with olive oil using a pastry brush or spray them with a cooking spray. This will help them develop a crispy, golden exterior.
Pop the baking sheet into the oven and bake for about 18-20 minutes, or until the meatballs are deep golden brown and firm to the touch. Check after 15 minutes and turn them halfway through for even browning.
Once baked, remove the meatballs from the oven and let them rest on the sheet for 5 minutes. This allows the juices to redistribute, keeping them moist inside.
Serve the baked chicken meatballs warm, with your favorite sauce, pasta, or on a bun. Enjoy the crispy exterior with a tender, juicy inside that’s bursting with flavor.