Add chopped bell peppers, green chillies and fry for another 3-5 minutes. Remove this mix and keep in a bowl you plan to spread the dish in.
In the same empty pan, add 1 tbsp olive oil.
Once the oil is hot add mustard seeds and cumin seeds and let sizzle for a few seconds. Add in the ginger and garlic. Add in the chopped mushrooms Cook it well until the mushroom becomes tender. Add a pinch of salt to mushrooms.
Add the cooked onions mixture and mix both well. Add in freshly ground pepper. Cook for 2-3 minutes covered and then cook on high till all moisture evaporates. Adjust seasoning.
Serve hot with fried rice, noodles or roti (Indian tortilla).
Recipe by The Novice Housewife at https://novicehousewife.com/2012/09/05/a-belated-gmt-mushroom-pepper-fry/