1. Place meat in 2-quart glass casserole. Cover with glass lid or plastic wrap.
2. Microwave on HIGH for 8 minutes. Add remaining ingredients, except sour cream and sauerkraut; recover.
3. Microwave on SIMMER for 20 minutes.Stirand continue cooking on SIMMER for 10 to 15 minutes or until fork tender. Blend in sour cream and sauerkraut. Recover and continue cooking on SIMMER for 4 to 5 minutes. Let stand, covered, 5 minutes before serving.