My much loved Great Aunt Peggy used to have us for lunch every weekend. It was marvelous. We'd go with the kids, have lunch, swim in her building's pool, have tea and cookies and go. Peggy lived to 103, and moved herself into a home at 100 or so and was pretty British in her cooking. She believed that a good meal is a roast, potatoes and two veg. So, potatoes hit the menu pretty often. As she got older, peeling all the potatoes and hauling the full pots around got to be too much, so she got instant mashed. They were OK.
Now that we're living on a boat again and stove fuel is harder to come by, and it is often cold.... We got some instant mashed potatoes. It's a little pricey but it is so easy and when we get into port, cold and hungry.... It's amazing. The swedish brand anyway. We've got a package from Denmark now. We'll see.