Place the stainless steel inner pot inside the Instant Pot®. Press Saute and set time to 15 Minutes. Add the olive oil, salt, garam masala, onion, garlic, and ginger. Sauté for about 5 minutes, then add the tomato and red pepper. Add 2 tbsp water. Continue until onion is translucent, stirring occasionally. Once this is done, press Cancel.
Add the mushrooms, broccoli, and coconut milk. Stir. Press Pressure Cook and set time to 2 Minutes.
Once done, press the pressure release button to release all the air.
Open the pot lid. You can serve immediately alongside basmati rice.