 [ Symptoms ] when to eat after insulin injection also how much to eat after your insulin injection [ Disease ] you should eat a meal within 15 minutes after taking your insulin you should eat a meal that is light in carbs and calories at breakfast you should eat a scrabbled egg toast small orange juice skim milk for lunch small green salad with a light salad dressing turkey sandwich with one slice of mozarella cheese unsweetened tea for dinner turkey sandwich half an apple and skim milk