
Marinate the lamb sirloin with all the ingredients and let it sit for 30 minutes and up to 24 hours before grilling.
Preheat an outdoor grill and place the lamb sirloins for 6-10 minutes on each side —depending on how well done you prefer the lamb. 6 minutes for rare, while 10 minutes for medium done.
Keep the BBQ lid on for most of the grilling time.
Once the lamb is ready, remove it into a cutting board and let it rest for at least 3 minutes before slicing g it really thin.
Make the Tzatziki sauce: Mix everything together in a large bowl. taste and adjust salt.
If you can charr the bread on the grill that would be best for the gyro sandwiches.
Assemble the sandwiches: Starting off by layering the bread over a piece of parchment paper or wax paper.
Leave half of the bread out of the paper so that you can wrap it and know where to eat it from.
Now spread your Tzatziki sauce over the bread, layer the succulent lamb and toppings. Squeeze some lemon juice and wrap it up with the paper. Serve right away!
ENJOY!