Grandpa Louis McMillan, 69 of Fannin, Texas, is a master at the art of barbecue. He knows what temperature to cook the meat, how to apply dry rub, how long to smoke it and cook it. His eatery was a former post office -- and the food there always delivers. It was deemed one of Texas' top barbecue joints many years running. If you like brisket, ribs and the South, you will not want to miss this episode.

Sister Marie Pappas, 62, is a kind and energetic nun who lives in a convent in Hopewell Junction, N.Y. She has dedicated her life to her faith and to teaching young people about religion. It's a Hawaiian-themed dinner at the convent, and Sr. Marie and her fellow nuns teach Mo Rocca how to prepare grilled chicken with pineapple and a pineapple cake that could be described as heavenly. Sr. Marie also has Mo as a guest on her weekly radio show.