Make the Greek vinaigrette. Combine ½ cup extra virgin olive oil, ¼ cup red wine vinegar, 2 Tbsp fresh lemon juice, 2 finely chopped garlic cloves, ½ tsp dried oregano, ½ tsp sugar, ½ tsp Kosher salt, ¼ tsp black pepper, and 2 Tbsp feta cheese in a large measuring cup. Whisk to thoroughly combine.
Season the turkey. Place ground turkey in a large mixing bowl, then add ½ cup breadcrumbs, 1 ½ tsp Kosher salt, and 6 Tbsp of the Greek vinaigrette. Use your hands to mix well.
Chill the meatball mixture. Cover ground turkey mixture with plastic wrap, then refrigerate for an hour. (If you skip this step, the meatballs will be harder to form given the oil in the dressing.) Meanwhile, bake the pita chips.
Make the pita chips. Preheat oven to 450F. Take 4 fluffy pita, then slice them in half. Cut each half into 3 or 4 wedges, depending on how large you want the pita chips to be. Place the pita wedges onto a parchment-lined rimmed baking sheet. Drizzle with 3 Tbsp extra virgin olive oil, 1 tsp onion salt, and ½ tsp dried oregano.
Bake the chips. Place in a preheated oven and cook for 7 minutes, or until golden brown and crispy. If using a thinner pita bread, check them after 5 minutes so they don't burn.
Form the meatballs. Either preheat oven to 450F (it will already be this temp if you made pita chips) or set the broiler to high. Use a standard medium 1 ½" diameter cookie scoop to evenly portion the meatballs (heaping scoops!), then place on a rimmed baking sheet. Gently roll each meatball into a uniform round ball. 2 lbs of ground turkey should yield 24 meatballs.
Bake the meatballs. If baking, place meatballs in a preheated oven and cook for 12-14 minutes, or until an internal temperature of 165F is reached. If broiling, make sure rack is directly under by the broiler by about 3". Cook for 12 minutes, flipping the meatballs once halfway through.
Serve with Greek salad. Assemble Greek salad using our favorite toppings (our recommendations are below!), then place the Geek turkey meatballs on top and drizzle with extra salad dressing. Serve immediately!