In medium bowl, combine first six ingredients; toss to coat. Cover and let stand 1 hour.
Meanwhile, in 1 quart casserole, place 1 1/2 cup hot water, the butter, salt and turmeric. Stir in rice. COver and cook on high 5 minutes, then cook on medium, 50% power, 20-22 minutes until water is absorbed and rice is tender.
Fluff with fork. Re-cover and let stand until ready to serve.
For kebabs, place 2 onion wedges onto each skewer with lamb cubes. Place skewers on a large platter; cover with wax paper and cook on medium, 50% power, 12-14 minutes, turning kebabs once.
Place cherry tomatoes on ends of skewers during last 3 minutes of cooking.
Servings: 4