You shouldn't need to add salt to this salad because of the saltiness of the olives
1 hard-boiled egg, peeled and chopped
2 teaspoons mayonnaise (I use olive oil mayo)
1 teaspoon Dijon mustard
4 green pimento-stuffed olives, chopped
1 scallion, chopped
black pepper to taste
Combine ingredients in a small bowl, or whiz in a mini food processor.