Prep your base and veggies. Cook rice or your grain of choice according to package directions. Steam or roast your veggies until just tender. Keep warm.
Mix the meatball ingredients. In a large bowl, combine ground turkey, Parmesan, breadcrumbs, egg, garlic, parsley, onion powder, oregano, salt, and pepper.
Mix gently with a fork or your hands until just combined. Avoid overmixing.
Shape the meatballs. Scoop about 2 tablespoons of mixture per meatball and roll into firm, even balls. You should get around 18–22 meatballs.
Cook the meatballs. Skillet method: Heat olive oil in a large nonstick skillet over medium heat.
Add meatballs in a single layer and cook 8–10 minutes, turning gently, until browned on all sides and cooked through (165°F internal temperature).
Bake method: Heat oven to 400°F (200°C). Place meatballs on a parchment-lined sheet, drizzle or mist with oil, and bake 14–18 minutes, or until cooked through and lightly golden.
Make the garlic Parmesan finish. In a small skillet over low heat, melt butter. Add garlic and cook 30–60 seconds until fragrant, not browned.
Stir in Parmesan, lemon juice, and parsley to form a loose, glossy coating.
Toss the meatballs. Add cooked meatballs to the skillet and spoon the garlic-Parmesan butter over them to coat. If it thickens too much, add a splash of warm water.
Assemble the bowls. Divide rice among bowls. Top with veggies and meatballs.
Spoon any extra garlic-Parmesan sauce over the top. Finish with more Parmesan, a squeeze of lemon, and red pepper flakes if you like.