I have flashed cooked beans by opos many times.Guess the beans poriyal can be made just in minutes.It always turns out very crunchy,greenly and well cooked.Make sure to use the fresh beans.This is basic poriyal recipe.Variations can be done with added diced(cubic sized) carrots, or can be added soaked & coarsely ground dal(usili) which has to be soaked for 15 minutes.I never add coconut to poriyal for daily cooking(only special occasions).Instead of coconut,1/2 tsp of coconut oil can be drizzled.
Beans, chopped -250 gms
Mustard seeds-1/4 tsp
Broken urad dal-less than 1/4 tsp
Coconut, grated-1 tsp
Dry red chillies-1-2 ,broken
salt to taste
1.Remove the fiber from the beans sides and finely chop them
4.Close the lid and keep whistle. Cook for exactly seven minutes. Swtich off the flame
(No need for whistle).Let it release the pressure on its own.