My experience is: 1. Raw vegetable salad is the best. Especially green leafy vegetables. It not only maintains nutrition, but also is crisp and appetizing. Such as: raw vegetables, lettuce, Chinese cabbage, Chinese cabbage, etc. 2. Some vegetables need to be blanched with water, such as broccoli, diced potatoes, cauliflower, etc. 3. There is no taboo in vegetable salad logically, but in terms of taste, it can be matched according to personal taste.