Heat, tomatoes do soup sweet and sour most appetizing. With beef is appetizing tonic soup. 1. tomatoes, beef, potatoes, onions, respectively, cut into almost the size of the block. 2. beef block first into the pot to cook for a while, coloring fish out rinse clean foam. 3. onions into the pan fried incense, into the tomatoes, fried out of the red oil, and then put into the potatoes and beef, stir fry evenly.