This zesty salad is packed with Italian antipasto favorites -- and you won't be hungry an hour later.
Stem and thinly slice 1 pepperoncini; in an airtight container, mix with lettuce, tomato, cheese, salami, and whole pepperoncini.
In a small bowl, whisk oil, vinegar, mustard, and a pinch each of salt and pepper; transfer to a small container. Refrigerate both containers, covered, up to overnight. Toss just before serving.