We tried it, loved it, and had it again last night!
Here is her recipe for Ground Beef Gyros and Cucumber Dressing.
(I didn't make the beef patties, just added the seasoning and browned up the ground beef. If you make the dressing, make sure to use Greek or strained yogurt so that your dressing will be thicker -- I just used regular yogurt and while it still tastes good, is quite runny.)
I made our own pita bread/flat bread with this recipe.