Marinated Beef Gyros with Tzatziki Sauce

To Make the Marinade:

Place all of the marinade ingredients in a small bowl, mix well to combine. Add the beef to a large ziploc bag, and pour the marinade over the meat. Work the marinade around the beef until all the pieces are coated. Refrigerate for at least 8 hours.

For Tzatziki Sauce:

Place a colander over a medium bowl. Combine the diced cucumber with the salt.. Transfer the cucumber to the colander and sit something heavy on top. ( A few stacked plates works well for this). Let the water in the cucumber drain through the colander into the bowl. About 1 hour. Place the drained cucumber onto a clean kitchen towel. Gather the ends of the towel and squeeze the rest of the moisture from the cucumbers. Do this several times until no more water runs out.
In a food processor or blender, combine the drained cucumber, lemon juice. garlic, dill, salt and pepper. Process until well blended. Stir this mixture into the yogurt and refrigerate for several hours to allow the flavors to blend.

To cook the steak:

Preheat the grill to 350°F. Using a grill liner (steak slices may fall thru grill rack), place steak slices on the preheated grill and cook for 3-4 minutes per side, or until done as desired.Remove from grill. Discard marinade left in the bag.
Place Pitas directly on the grill rack and heat about 30 seconds on each side to warm.
Assemble Gyros by placing slices of steak in the center of the pita bread. Add lettuce, tomato and onion slices, then drizzle with Tzatziki Sauce. Fold the Pita over on itself to make a half circle.