Slice your beef in cubes then boil it in ginger, garlic and black pepper until tender. Add some salt as it boils

Once it cooked separate the beef and broth

In a different pan fry onions till brown.

Add the boiled beef and mix well well. Cover for two minutes to let it mix with the onions.

Add sliced coloured peppers and let cook for two minutes. If too dry add some broth

Add your spices....soy sauce, garam and beef masala. Let it cook for two minutes so that the spices blend well with your beef