Preheat your oven to 400°F (200°C). This ensures that the meatballs will cook evenly and develop a beautiful golden color.
In a large mixing bowl, combine the ground chicken or turkey, whole wheat panko breadcrumbs, egg, chopped sun-dried tomatoes, feta cheese, parmesan cheese, minced garlic, green onions, fresh parsley, salt, and black pepper.
Using your hands or a spatula, gently mix the ingredients together until just combined. Be careful not to overmix, as this can lead to tough meatballs.
Using your hands, scoop out about 2 tablespoons of the mixture and roll it into a ball. Place the meatball on a baking sheet lined with parchment paper. Repeat this process until all the mixture is shaped into meatballs.
Place the baking sheet in the preheated oven and bake for 20-25 minutes, or until the meatballs are cooked through and golden brown on the outside.
Once cooked, remove the meatballs from the oven and let them cool for a few minutes. Serve with a squeeze of lemon, if desired, alongside your favorite dipping sauce or over a fresh salad.
