2 md Onions; peeled
2 md Tomatoes; peeled
1/3 c  Olive or salad oil
2 tb Wine vinegar
Salt and pepper, to taste
6    Rounds pita bread
1 1/2 lb Hot thinly sliced
Garlic-flavored roast lamb
OR
Spiced beef, cut in strips
2 c  Lettuce; shredded
1 ts Dried oregano

Cut onions from top to bottom into thin slices. Cut tomatoes from top to
bottom into thin slices. Put into two small bowls and set aside. Combine
oil, vinegar, salt, and pepper in a small bottle or bowl. Heat Pita bread
in a preheated 350F oven about 10 minutes, until warm. Fold each pita bread
in half across the center. Fill each with some strips of cooked lamb or
beef. Sprinkle with a little of the oil-vinegar mixture. Top with some
shredded lettuce, sliced onions and tomatoes, and oregano. Sprinkle again
with oil-vinegar mixture. Serve at once.