Preheat the oven to 400°F
Line a baking sheet with parchment paper or lightly grease it
In a large bowl, combine ground turkey, breadcrumbs, egg, minced garlic, chopped onion, salt, pepper, and any desired herbs or seasonings
Mix gently until just combined
Shape the mixture into evenly sized meatballs
Place the meatballs on the prepared baking sheet
Bake for 15 to 20 minutes, or until cooked through and the internal temperature reaches 165°F
Remove from the oven and let rest for a few minutes
Serve warm with sauce, pasta, rice, or vegetables