Preheat oven to 400°F. Line a baking sheet with parchment. In a bowl, mix turkey, breadcrumbs, Parmesan, egg, parsley, garlic, salt, and pepper until just combined.

Roll mixture into 1½-inch balls using damp hands. Place on prepared sheet, leaving space for even cooking.

Bake meatballs for 15–18 minutes, flipping halfway until golden brown and firm.

Heat olive oil in a skillet over medium heat. Add onion and garlic, cooking until soft, about 3–4 minutes.

Stir in crushed tomatoes, dried Italian herbs, salt, and pepper. Simmer for 10 minutes until thickened.

Bring a pot of salted water to a boil. Add pasta and cook al dente, about 8–10 minutes. Drain, reserving ½ cup of pasta water.

Nestle baked meatballs into sauce and cook for 5 minutes. Toss in pasta, adding reserved water to loosen sauce.