Put a pot of water on to boil. When it's hot, you will place it in a large, wide glass or metal bowl (a wide enough pot will do in a pinch, or a wok.)
Place dried rice noodles in a small pot of boiling water and cook until soft, following the instructions on the package.
While the water is boiling, prepare the other ingredients for as many people will be eating.
If you buy the shrimp and roast beef pre-cooked, this is a super simple meal. Put these out in a bowl or on a platter.
Wash the vegetables. Thin slice the carrots, celery and cucumber. Chop the mint and cilantro. Break up the lettuce.
The spring rolls can be prepared in the kitchen and served on a platter, but it's a lot more fun for everyone to make their own at the table.
To serve, place a single sheet of rice paper in the large bowl of hot water for 3-5 seconds. Rotate it around. It should become soft and sticky. Put the rice paper flat on your plate and add ingredients to the center to taste. Fold up on side tightly, then the other, then fold up the two ends.