First I put the yogurt, feta, mint, and lemon zest all into one bowl. I season it with salt and pepper to my liking.
I take the lamb and divide it equally into four patties. I then make an indent on the patty to help it cook easier. Again, I season with salt and pepper to my liking.
After heating up the cast iron skillet on medium-high heat, I place the burgers on the pan for approximately six minutes. The goal is for the patty to have a crispy exterior but a soft interior.
Lastly, I smear the yogurt sauce on each bun and add any vegetables of my choice, such as red onion and rocket. Place the patty in your buns and voila!