Saute Aromatics - Remove excess oil from the wok, leaving behind 2 tablespoons of oil. Once the oil is hot, add ginger, garlic and green chillies. Saute for a minute and add onions and capsicum. Stir fry for 2-3 minutes on high heat, add fried mushrooms and toss with the aromatics for a minute.
1 tablespoon finely chopped garlic, ½ tablespoon finely chopped ginger, 1 medium onion, 1 medium green capsicum, 3-4 green chillies