Heat oil in a heavy bottomed pan, and fry garlic and ginger for a while. Add sliced onion and green chilly, and fry again. When onion slices turn brown, fry ground turmeric, ground coriander, and garam masala.

Once it’s done, you can add capsicum and tomato slices. Mix well and allow it to cook for some time. Now it’s time to add mushrooms. Also add the stock cube and mix well. Cover the pan with a lid and simmer over low to medium heat until the mushrooms are cooked well.

When done, add black pepper and coriander leaves, and serve.