Recipe from http://www.vodkaandbiscuits.com/2014/05/03/grilled-lamb-pitas-w-pistachio-mint-pesto/ 

Ingredients (Serves 4)

For the burgers

1. 1 lb. ground lamb

2. 1 shallot

3. 1 large garlic clove

4. 1 T. fresh dill - roughly chopped

5. 2 t. Mediterranean spices (see post for suggestions)

6. pinch red pepper flakes

7. pinch salt and pepper

8. 4 pitas

For the pesto

1. 1 c. fresh mint leaves

2. 1/4 c. pistachio nuts

3. 1/4 c. olive oil

4. Feta cheese crumbles as needed

5. salt as needed

For the yogurt

1. 1/2 c. nonfat Greek yogurt

2. 1 T. fresh lemon juice

3. Dill as needed

4. salt and pepper as needed

Additional Garnishes

1. Diced Cherry Tomatoes

2. Sliced Cucumbers

Instructions

For the burgers

1. Add the meat, herbs, and seasonings to a large bowl. Using a fine grater or zester, grate the shallot and garlic over the meat, wiping off any excess stuck to the grater. Mix with your hands - don't be afraid to get your hands dirty!

2. Scoop a fourth of the meat and place into a burger mold (I may or may not have used a Tervis lid). With your thumb, make an indent on the top of the patty. Transfer to a plate and repeat for the next three patties. Place in fridge for 30 minutes to one hour.

3. Fire up the grill to a medium flame. Make sure your grill is nice and clean!

4. Once hot, place the burgers down and cook 6-7 minutes on each side - only flipping once! Once grilled to desired doneness, transfer to resting plate. Add pitas to grill and heat until charred.

For the pesto

1. Combine mint, nuts, and olive oil in processor and pulse. Adjust oil if needed. Season with salt. Fold in Feta crumbles.

For the yogurt sauce

1. Combine all ingredients and stir. Adjust as needed.

For the pita

1. Stuff the burgers into the pita and top with pesto and yogurt sauce! Mix the pesto and yogurt sauce together if desired.