Place vinegar, olive oil, lemon juice, cinnamon, ground cloves, nutmeg, garlic, salt and pepper into a bowl or container with a lid and mix well.
Slice the steak into very thin slices.
Add the steak to the marinade and refrigerate for a few hours or overnight.
Preheat oven to 350° F.
Place the marinade and steak into an oven-safe dish with a lid and bake for about 45 minutes.
Remove the steak from the marinade and prepare to serve.
Heat the pita bread in the oven for about 8 minutes.
Remove from the oven and spread tzatziki and hummus on the bread.
One one side, top with the desired amount of meat, cucumber, tomato, olives, lettuce, and feta.
Fold in half and enjoy.