6000 to 10000 grams of vegetables. Counting four dishes, one soup and two meats for more than 20 people, each person needs 300-500 grams, and 20 people need 6000- 10000 grams of vegetables to make everyone eat enough. Four dishes, one soup, two meats and two vegetarian recipes include fried Pleurotus eryngii in oyster sauce, fried eggs with cucumber and fungus, soup with loofah and yellow bone fish, vegetarian fried oil gluten and so on.