Microwave or stovetop: To reheat, add 1 to 3 tablespoons water for each cup of leftover pilaf. Stir gently while cold. Reheat in the microwave oven. It can also be reheated over medium-low heat in a saucepan on the stove, stirring occasionally. If adding it to a curry or sauce, heat the curry or sauce first, then mix in the orzo rice and stir until warmed through. Oven: Spread orzo rice in an even layer over the baking dish, gently breaking up any clumps. Splash with about 2 tablespoons water or broth per cup of pilaf. Use foil to cover the dish tightly. Bake for about 20 minutes or until heated through.