To a large bowl add, ground turkey, diced red onion, minced garlic, oregano, fresh spinach, salt, and pepper. Using your hands mix all the ingredients together until meat forms a ball and sticks together.
Then using your hands, form the meat mixture into 1″ balls. (about 12 meatballs).
Heat a large skillet to medium-high heat. Add avocado oil to the pan, and then add the meatballs. Cook each side for 3-4 minutes until they are browned on all sides and the internal temperature has reached 165°F. Remove from the pan and let rest.
To a small bowl add greek yogurt, grated cucumber, lemon juice, dill, garlic powder, and salt to taste. Mix together until everything is combined.
To a flatbread (I like to warm mine up so they are more pliable) add 3 meatballs, sliced red onion, tomato, and cucumber. Then top with Tzatziki sauce.
