Pressure cook the cleaned beef with 1 tbspn chopped ginger,1 tspn meat masala, 1/2 tspn pepper powder, salt and curry leaves, until it's done.
Once it is cooled mince the meat using a food processor/chopper etc.
Heat oil in a wide and deep pan. Saute onion till it becomes soft. Add chopped ginger, green chillies and curry leaves. Add minced meat. Mix well. Add meat/garam masala. Saute the minced meat till it becomes dry. Allow the mixture to cool.
Once it is cooled, add mashed potatoes & mix well. Make small balls with the mixture & roll into desired shapes.
Beat the egg white. Dip each cutlet in egg white & roll with bread crumbs. Deep fry in oil. Serve hot with tomato ketchup and salad.
Notes
The shaped cutlets can be stored in the freezer for a month. Bring it to room temp before frying.