Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.

In a large bowl, combine ground turkey, breadcrumbs, egg, onion, garlic, parsley, salt, and pepper; mix until just combined.

Form the mixture into golf ball-sized meatballs and arrange them on the prepared baking sheet.

Bake for 20-25 minutes until golden brown and cooked through.

While baking, heat crushed tomatoes in a pot over medium heat; stir in oregano and season with salt and pepper. Let simmer until thickened.

Once meatballs are done, add them to the sauce for additional flavor melding before serving.