Wash and clean the cauliflower. Cut into florets and take a bowl with water covering it completely. Bring to a boil and keep it aside with lid covered.
Wash and trim the mint leaves. Make a fine paste in a blender / mixer using water.
Heat a non stick pan with cooking oil, saute onions till brown. Then, add finely chopped green chillies. Fry for a minute. Then, add ginger garlic paste, a minute later add the mint paste. Keep stirring to make sure it doesn't get burnt. Simmer for couple minutes till the mint paste is cooked well.
Then, add salt and pepper. Finally, add the drained cauliflowers florets to the pan. Stir well to get the florets well coated. Continue cooking till it's dry.
Takes about 5 - 7 mins in high. You can do in simmer too if you are using a regular pan.