Ingredients: 300g of yam, 0/00g of beef tenderloin/kloc-,200g of rape, 50g of fungus, onion, ginger and garlic. Suitable seasoning: 2 tablespoons of vegetable oil, black pepper 1 tablespoon, raw flour 1 tablespoon, 2 tablespoons of broth, red wine, salt and chicken essence. Appropriate method: 60. Marinate beef tenderloin with red wine, black pepper, salt and chicken essence to taste; 2. When the pot is hot, add vegetable oil and burn it to 80% heat. Add onion, ginger and garlic and stir-fry, then add marinated beef tenderloin and stir-fry quickly. When the color changes slightly, take it out of the pot. 3. Put the yam in the pot and stir fry for a while, then pour in the broth and rape; 4. When the rape turns emerald green, add the tenderloin that has just been fried to half-cooked, add salt and chicken essence and stir well. Note: the speed of peeling and slicing the yam should be fast, and then the cut yam should be quickly put into the water to avoid the surface oxidation and color blackening of the yam, which will affect the appearance. Nutrition package: Yam contains many kinds of nutrients needed by human body, such as starch, protein, B vitamins, vitamin C, vitamin E, glucose, crude protein amino acids, choline and allantoin. Among them, yam soap has the effects of nourishing yin and strengthening yang and enhancing metabolism; Mucus and digestive enzymes can prevent cardiovascular fat deposition and contribute to gastrointestinal digestion and absorption; Containing soluble fiber, it can delay the emptying of food in the stomach, control the increase of blood sugar after meals, help digestion, lower blood sugar and control the desire to eat. Chinese medicine believes that yam has the functions of invigorating spleen, eliminating dampness, invigorating qi, benefiting lung, consolidating kidney and benefiting essence.