Heat a saucepan or pot over a medium flame. Add butter and allow it to melt.
Once the butter melts, add cumin seeds. Allow the seeds to splutter.
Add chopped onion and green peas. Give them a stir and saute until the onions turn translucent.
Then add the ginger-garlic paste. Cook for a few minutes until the raw smell of the ginger-garlic paste disappears.
Add grated cauliflower, carrots and chopped capsicum. Mix well.
Add salt. Cook the veggies for 2-3 minutes.
Pour tomato puree into the saucepan. Mix well.
Then add turmeric powder, red chilli powder and pav bhaji masala. Give it a good mix.
Cook for 2-3 minutes or until oil separates from the masala.
Pour water and give it a good stir. Increase the heat and bring it to a boil.
After it comes to a boil, reduce the flame to a medium-low.
Add the oats. Mix well. Cover the saucepan with a lid.
Allow it to cook for 4-5 minutes or until the oats are cooked and the water has been absorbed.
Uncover the pan. Give it a stir and check the consistency and seasoning. Turn the flame off.
Add roughly chopped coriander leaves. Mix well.
Immediately pour it into the serving bowl/plate. Add a dollop of butter over the top and garnish with coriander leaves.
Pav bhaji oats is ready to serve!