* 1/2 pound flank steak or skirt steak, cut across the grain into 1/4-inch slices
* 1/3 cup balsamic vinegar
* 1 1/2 tablespoons lemon juice
* 1 teaspoon oregano
* 1/4 teaspoon pepper
* 3/4 cup plain, fat-free Greek yogurt
* 1/2 teaspoon garlic powder
* 1/2 teaspoon pepper
* 1/8 teaspoon salt
* 1/2 tablespoon lemon juice
* 1 teaspoon bottled, minced garlic
* 1/2 cup tomato, chopped
* 1/2 cup cucumber, chopped
* 2 pieces whole-wheat pita bread
tasty recipe from that site.