
Hot beef and onion sandwich with melted cheese in a bun.
160 gBeef steak
55 gMozzarella cheese
8 gButter
60 gOnion
120 gBrioche Buns
Slice the beef as thinly as possible and thinly slice the onion.
Cook the onion in butter for 5-6 minutes until soft and golden.
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To tasteSalt
To tasteBlack Pepper
Add the beef, season with salt and black pepper, and cook for 2-3 minutes until just done. Top with cheese to melt.
Pile the beef mixture into the buns and serve immediately.