Boil your meat with spices,chop into small pieces and keep aside,grind your pepper and slice your onion,add little oil to a pan and saute your onion for 3 mins,add your meat and continue frying for like 4_5 mins, add pepper and seasoning

Fry for 3 more mins,add corn flour mix and soy sauce,add little water and allow to cook for 3_5 mins,set aside

Mix mayonnaise and ketchup in a small container,add little black pepper and any spice you like,I added ginger powder,mix well and use a spoon to spread over the bread,add your sliced cucumber and cabbage,then add the beef mix