The chicken will cost about 35 Baht/500 grams. For 4 servings, this is about 26 cents per serving.
Variants: 1. Top each serving with a fried sunny side up egg or two. 2. Change the types of mushrooms you use each time, like button, Shiitake, Shimeji, King Oyster. 3. Add a diced bell pepper.
Adapted from an internet recipe.