Watercress has also found use in cooking.

An excerpt from the article 20 facts about watercress

Due to its distinctive flavor, it is an addition to various dishes, enriching their taste. It is sometimes an ingredient in salads along with tomato or spinach. It can be used to make pesto (only from it or as an addition to a standard one). It goes well with meat dishes and is sometimes an ingredient in cocktails. It has a wide range of uses, from soups (such as pea and arugula soup) to desserts. It works best in fresh salads, cold sauces, vegetable pastes, and sandwiches.