01 - In a large bowl, combine ground turkey, egg, Parmesan, breadcrumbs, garlic, parsley, oregano, salt, and pepper. Mix until just combined.
02 - Shape the mixture into 16 small meatballs, approximately 1.5 inches in diameter.
03 - Heat 1 tablespoon olive oil in a large skillet over medium heat. Add meatballs and cook, turning occasionally, until browned on all sides for 6 to 8 minutes. Remove meatballs and set aside.
04 - In the same skillet, add 1 tablespoon olive oil. Sauté onion over medium heat until translucent, about 3 to 4 minutes. Add garlic and cook for 1 minute.
05 - Stir in crushed tomatoes, basil, oregano, salt, pepper, chili flakes, and sugar. Bring the mixture to a gentle simmer.
06 - Return the meatballs to the skillet, nestling them into the sauce. Cover and simmer for 15 minutes, or until meatballs are cooked through.
07 - While the sauce simmers, spiralize the zucchinis into noodles. Pat dry with paper towels to remove excess moisture.
08 - In a separate large skillet, heat 1 tablespoon olive oil over medium-high heat. Add zucchini noodles and sauté for 2 to 3 minutes, just until tender. Season with a pinch of salt.
09 - Plate zucchini noodles, top with turkey meatballs, and spoon over marinara sauce. Garnish with extra parsley or Parmesan if desired.