Arrange lamb in a shallow microwave-safe baking dish. Brush with smoke flavoring and top with chopped onions. Microwave on medium for 12 minutes, turning once; drain.
Combine orange juice, cranberries, sugar, flour, mustard, orange peel and allspice in a microwave-safe bowl. Microwave on high for 6 minutes, or until boiling, stirring twice.
Pour sauce over lamb; microwave on medium for 5 minutes. Let stand, covered, for 5 minutes. Serve hot.
Servings: 6