Green beans refer to immature, freshly harvested beans that are typically small and slender in shape. They can also refer to larger beans that have been cut into shorter lengths or dried beans that have been soaked and cooked until tender but still slightly crisp. Green beans are a popular vegetable known for their mild, nutty flavor and crunchy texture when eaten fresh off the vine. They can also be used in various recipes such as casseroles or salads, and they're often cooked with different seasonings to enhance their taste.