A grinder salad is a delicious salad made of pepperoncini, lettuce and red onion tossed in a delicious mayonnaise based dressing that is full of flavor. It is then placed on a hoagie or french bread along with Italian meats such as salami and pepperoni and cheeses. "Grinder" was the nickname of the bread this was served on, because it was hard and crusty and you had to "grind" your teeth to chew it.