Preheat the oven. Heat oven to 400°F. Drizzle olive oil in the bottom of a shallow Dutch oven or oven-safe skillet.
Mix meatballs. In a large bowl, combine ground turkey, ricotta, Parmesan, panko, garlic powder, salt, and Italian seasoning. Stir until well mixed.
Shape and bake. Roll into 20–24 small meatballs and place in the prepared pan. Bake 20–25 minutes, until browned and cooked through (165°F internal temp).
Add sauce. Pour marinara over the baked meatballs and gently stir to coat.
Make topping. In a small bowl, combine 1/4 cup panko, 1/4 cup Parmesan, and 2 teaspoons olive oil. Sprinkle over the meatballs and sauce.
Final bake. Return to oven for 5–7 minutes to heat through. For extra crunch, broil for 2–3 minutes until topping is golden.
Serve. Garnish with parsley and serve hot with salad and garlic bread.