To be safe and nutritious, you have to cook it yourself. First of all, the beef should be raw, and the cooked beef processed outside is boiled. I won't go into details. I think the most nutritious beef is stewed with tomatoes, which is not only delicious and easy to digest, but also vitamin C in tomatoes can promote the absorption of iron in beef. The practice is as follows:

Blanch the beef, blanch it in a pot with cold water, skim off half the foam, and turn off the heat after cooking for one minute to avoid overcooking. Blanch tomatoes with boiling water, peel and cut into pieces.

Put oil in a hot pan and cool, add onion and ginger slices and stir-fry until fragrant, then add washed and drained beef and stir-fry over medium heat until the meat surface is slightly yellow.

Add salt and a little soy sauce, add tomatoes and stir-fry until the tomatoes are soft and rotten to red oil. Salt is good for tomato juice at this time.

Heat the water. If you like soup, add more water. Bring it to a boil and stew it in a casserole for an hour. Sprinkle coriander before eating. Ok ~ ~