Open the lid and remove lamb and string beans. Place cover loosely on top and heat potatoes on high for 60 seconds. Stir and test for the desired temperature. Add lamb and string beans and heat for another 60 seconds and test for the desired temperature. If not hot enough, heat in 30-second increments until the desired temperature is reached. Add salt and pepper to taste.
NOTE: If the family style aluminum container is used, empty contents into a microwave-safe container and then follow the instructions above.
Preheat oven to 400 degrees F. Place potatoes in oven safe pan and heat for 8 minutes. Add lamb and string beans, cover, heat for 3 minutes and test for the desired temperature. Continue heating in 3-minute increments until the desired temperature is reached.
NOTE: Family style for 4 aluminum container can be placed directly in the oven.