One 100 g serving of mushrooms, shiitake, stir-fried has 39 calories, 7.7 g of carbs, and 3.6 g of fiber.
Full macro and micronutrient breakdown, plus how this compares across diets, is on the Mushrooms, shiitake, stir-fried nutrition facts page.
Source: USDA FoodData Central - SR Legacy (2018-04)