Macaroni and cheese, box mix with cheese sauce, unprepared: serving (3.5 oz) to Grams
Quick answer
One serving (3.5 oz) of macaroni and cheese, box mix with cheese sauce, unprepared weighs 25 grams.
1 serving (3.5 oz)25 g
Reference serving (nutrition facts)100 g
Source: USDA FoodData Central - SR Legacy (2018-04) (USDA household portion weight)