Often when meals are dry after reheating, it is due to not thawing the meals and/or heating too fast at too high a temperature. Every microwave is different, and while we suggest 70% power for reheating completely thawed meals, it may be that your microwave would be better set at a lower power. Try lowering the power to 50%. Check the meal after two minutes, then continue heating for additional one minute intervals until hot. Whenever possible, stir the food to distribute the heat throughout.
Some clients like to add a little water, broth or milk before reheating to moisten their meals.