Set the electric pressure cooker to gravy mode.

Heat oil in the cooker.

Add chopped onion, grated garlic, and grated ginger. Sauté until the onion turns translucent.

Add tomato puree, diced carrots, chopped cabbage, pav bhaji masala, salt, diced potatoes, and chopped green bell pepper.

Stir well to combine.

Add 1/2 cup of water.

Lock the lid and set the timer for 30 minutes.

Allow the pressure to release naturally.

Open the cooker and mash the vegetables using a potato masher until well mashed.

Add steamed green peas, butter, and lemon juice.

Stir well and adjust seasoning to taste.

Transfer the Pav Bhaji to a serving bowl.

Serve hot with toasted pav buns and chopped onions.