Step 1

Mix the spinach, garlic, onion, oregano, salt, pepper, feta and turkey together in a bowl until just combined.

Step 2

Shape into 4 patties, 1-inch thick.

Step 3

Heat a heavy skillet or cast iron skillet on pan to medium-high.

Step 4

Add the patties and cook for 4-5 minutes on each side. Do not keep flipping them over.

Step 5

Toast the hamburger buns lightly.

Step 6

Mix the yogurt, lemon, salt and pepper in a bowl and add to the buns.

Step 7

Top with lettuce, onion and the turkey patty.