Deviled Eggs
["6 hard-cooked eggs, halved lengthwise", "1/4 c. mayonnaise", "1/4 tsp. salt", "dash of pepper", "2 tsp. prepared mustard", "1 Tbsp. minced onion (optional)", "1 Tbsp. diced celery (optional)", "1 Tbsp. diced, stuffed green olives"]
["Remove egg yolks; mash and combine with the remaining ingredients.", "Stuff egg whites; chill and sprinkle with paprika."]
["eggs", "mayonnaise", "salt", "pepper", "mustard", "onion", "celery"]