Cut under cut beef into thin slices
Cut all vegetables and set a side
Merinate the beef mix all merination ingredients and put a side for 15min
Heat the oil and fry beef chunks and put a side
Now heat some oil saute garlic
Mix sauces and cook a while then add fried beef chunks
Cook for a min and add veggies cook for a min or two then add capcicum and green chillis and cook for tow min
Now add black pepper and adjest the salt to taste(here you have choice to be dry or some saucy it's totally up to you)
Here i made it some saucy so i use 1tbsp cornstarch+water and add it into pan and cook for a while and then turn off the flame
