Green onion (scallion) with bulb has 32 kcal per 100 g. Both the white bulb and green tops are edible. The bulb has a stronger bite, the tops are milder.
How should I track Green onion, (scallion), bulb and greens, root removed?
For consistent tracking of Green onion, (scallion), bulb and greens, root removed, weigh it raw. Cooking method changes both weight and calorie density — steaming barely changes anything, but roasting with oil or frying can double the calories. A systematic review (Whitton et al., Adv Nutr 2022) found vegetables are omitted from food logs 2–85% of the time, often because people assume they are "free" calorically. While most vegetables are indeed low-calorie, the fats added during cooking are not. Log the oil, butter, or dressing separately to keep your tracking accurate.