Preheat and prep: Heat your oven to 400°F (200°C). Line a large baking sheet with parchment and lightly spray or brush with olive oil so the meatballs don’t stick.
Mix the wet and aromatics: In a large bowl, combine grated onion, garlic, Greek yogurt, egg, parsley, oregano, smoked paprika, salt, pepper, and Parmesan if using.
Stir until smooth.
Add the turkey and breadcrumbs: Add the ground turkey and breadcrumbs. Use a fork or your hands to gently mix until just combined. Don’t overwork the mixture or the meatballs will turn dense.
Shape the meatballs: Scoop about 2 tablespoons per meatball (a small cookie scoop helps). Roll gently and place on the prepared sheet.
You should get about 20–24 meatballs.
Bake to juicy perfection: Bake for 14–18 minutes, or until the centers reach 165°F (74°C). If you want a little color, broil for 1–2 minutes at the end, watching closely.
Rest and serve: Let the meatballs rest for 3 minutes so the juices redistribute. Serve with warm marinara over pasta, spoon over quinoa with veggies, or pair with a bright lemony salad.