Step 1

Remove the lamb from it's packaging and set aside. In a large bowl (that has a fitted lid), whisk together the oil, lemon juice, rosemary, Mediterranean seasoning, garlic, salt and black pepper. Place the lamb in the large bowl and toss to coat with the mixture, rubbing it in where necessary. Cover and place in the refrigerator for 2-3 hours.

Step 2

Once the lamb has marinated, remove from refrigerator. Preheat your oven to 325 degrees F and line a large baking sheet with foil and then place an oven-safe rack on top. Place the lamb directly on the rack, then place in the oven and cook until a probe meat thermometer reads 145 degrees F for medium rare, about 1 hour (I cook my lamb to 135 degrees F for rare, but you may cook your lamb to the temperature of your liking). Remove the lamb from the oven and let rest for at least 15 minutes. Once the lamb has rested, cut into cubes or strips and set aside.

Step 3

To a high-powered blender of food processor, add the Greek yogurt, mayo, cucumber, dill, lemon juice, hot sauce, chipotle chili powder, salt and black pepper. Puree on high until smooth and creamy. Pour into an airtight container and refrigerator until you are ready to use.

Step 4

To assemble your lamb gyros, spread a thin layer of spicy tzatziki on a slice of pita bread and then layer on cucumber, tomato, pepper, onion, avocado, feta cheese, and lamb. Garnish with fresh parsley or dill and enjoy immediately.