Place cubed lamb (or chicken) into large non-aluminum bowl. Prepare salad dressing according to instructions on package, using olive oil and vinegar. Add salad dressing, lemon juice, black pepper(to taste), and mashed garlic cloves to lamb. Mix well to incorporate everything.
2
Cover, and allow to marinate overnight in the refrigerator.
3
Arrange lamb, onion slices, and tomatoes on BBQskewers. At this point, you can discard the marinade, or reserve it for basting. Cook over medium-high heat on BBQgrill till desired doneness is achieved. (This tends to produce the occasional flame from the BBQgrill, so keep a water squirter handy)
