- Heat 2-3 tbsp oil in a pan. Add finely chopped 1 medium-sized onion and saute till translucent.add 1.5 tsp crushed ginger-garlic,Add 3 medium-sized finely chopped tomatoes and 1 chopped green chili. Stir.add the spice powders – ½ tsp turmeric, (¼ or ½) tsp red chili powder and 1 tsp coriander powder. Stir and saute till oil starts to leave the sides of the onion-tomato masala mixture. Add 200 grams chopped mushrooms and (⅔ or ¾) cup peas Saute for 3 minutes. then add 2 cups of water and salt as required. cover the pan with a lid and cook till the peas are softened. once done, sprinkle (¼ or ½) tsp garam masala powder.