Mix ¾ cup of water, corn starch, soy sauce, sriracha sauce, rice vinegar and keep it on side.
Heat 3 tbsp of peanut oil in a wide pan.
Saute grated ginger and minced garlic on low/medium heat until the raw smell of garlic goes away (2-3 minutes).
Saute cubed onions and green peppers on high flame until they get charred. This way they will still be crispy!
Once onions and green peppers are charred, add baked mushrooms to the pan and mix it well. Cook on high flame for 2-3 minutes.
Slowly add corn starch mixture to chili mushrooms and mix it well immediately. This will make very thick coating around onions, bell peppers and mushrooms.
Garnish it with chopped cilantro and scallions, mix well and serve it hot!