Preparation

• Put the oats in a food processor and pulse three times to roughly chop. Add half of the beans and pulse into a coarse paste, about 6 pulses. Add the egg, cumin, and 1/2 tsp. salt and process to mix well, about 1 minute. Transfer the bean mixture to a large bowl. Stir in the remaining beans, the cheese, scallion, and cilantro.
• With wet hands, form the bean mixture into four 1/2-inch-thick patties and transfer to a lightly oiled plate. Refrigerate for 10 to 15 minutes to let the burgers set up.
• 在高火上加热大型重型煎锅（最好是铸铁），直到非常热；加入油并旋转锅以覆盖底部。煮汉堡，直到褐色，用良好的外壳褐色，2至3分钟；然后小心翼翼地翻转并煮熟，必要时再次翻转，直到用指尖按下时汉堡感觉牢固，再过3至5分钟。将汉堡放在面包中，上面撒上莎莎酱和鳄梨。