Egg salad sandwiches are a classic and tasty choice! For a basic recipe, you'll need hard-boiled eggs, mayo, mustard, salt, and pepper. Chop the eggs, mix with the mayo and mustard, add seasonings, and spread on your favorite bread. Some people like adding celery or onions for crunch. What ingredients do you usually have on hand? Or is there a particular twist you'd like to add to make it your own?