Creating Turkey and Apple Meatballs is simple when you follow these clear steps:

1. Preheat the Oven: Start by preheating your oven to 400°F (200°C). Line a baking sheet with parchment paper for easy cleanup.
2. Prepare the Apple: Grate the apple using a box grater. Set it aside; the moisture will help keep the meatballs tender.
3. Mix Ingredients: In a large bowl, combine ground turkey, grated apple, breadcrumbs, Parmesan cheese, chopped onion, minced garlic, egg, thyme, salt, pepper, and red pepper flakes. Mix until all ingredients are well incorporated.
4. Shape the Meatballs: Using your hands, form the mixture into meatballs, about 1-1.5 inches in diameter. Place them on the prepared baking sheet, ensuring they are spaced evenly apart.
5. Bake: Place the baking sheet in the preheated oven. Bake for 25-30 minutes or until the meatballs are cooked through and golden brown on the outside. An internal temperature of 165°F (74°C) should be reached.
6. Serve or Store: After cooking, you can serve the meatballs immediately or allow them to cool before storing them in the refrigerator or freezer for future meals.

These straightforward steps will guide you to success in creating the delightful Turkey and Apple Meatballs.