- Macerate cucumbers, mint, salt, pepper, and lemon juice for 10 minutes. Strain and mix with Greek yogurt and lemon zest. Refrigerate.
- In a bowl, combine ground lamb and merguez spice. Lightly incorporate, but do not overwork, and form into 4 equal-size patties.
- On a high-temperature grill, cook burgers for 4-5 minutes on each side. They should be medium well. Remove from grill and rest for 1-2 minutes.
- Place burger on the bottom of each bun, top each burger with a tomato slice, and finish with cucumber mixture and top bun.
Combine all ingredients evenly.
Yield / approximately 1½ cups