牛尾汤可以加番茄土豆洋葱一起炖，这样营养可以更全面，具体做法如下：
主要材料：牛尾500g，番茄4个，洋葱半个，胡萝卜1根，土豆500g，大葱半根，生姜1块，盐15g，番茄酱30ml，黑胡椒粉适量，味精少许。
1、牛尾在清水中浸泡洗净血水，沥干后放入无油的热锅中煎。
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2、洋葱洗净切片，牛尾煎至两面发白出油后，倒入洋葱片翻炒。
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3、另起一锅，生姜切片，大葱切段，大葱煎至表面微焦。
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4、将步骤2和3中食材倒入压力锅，再倒入清水没过食材，压大概35分钟。
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5、清洗准备其他的食材，番茄切大块。
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6、土豆去皮切块，放在有水的容器中，防止氧化。
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7、胡萝卜洗净，切滚刀块。
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8、另起一锅，开中火，倒少量油，倒入番茄块炒至软烂出汁。
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9、等压力锅压好了，放气，打开，撇去浮沫。
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10、倒入炒好的番茄和番茄膏，搅拌均匀，再倒入土豆和胡萝卜。
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11、最后压20分钟出锅，放入黑胡椒、盐和味精调味即可。
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