I am a busy nurse as well and found myself only eating one meal a day and that meal usually was something from a fast food joint!
So, when i decided to get it together, i made a snack bag to take everywhere with me: 100 calorie almond packs, v8 fusions, nature valley bars, soup "on the go". For breakfast, yogurt, Jimmy Dean delights breakfast sandwichs, oatmeal. All can be prepared and eaten quickly. One big meal in the morning, good healthy snacks the rest of the day!