Soup!
I was thinking about this today as I worry about getting veggies into my system, especially in wintertime. Soup is fast to make (open a can or carton, microwave, voila), and as long as it's not overloaded with sodium, it's good for you. You can also make huge batches of it when you do have spare time, freeze it in individual containers, and have it ready to use when you're in a pinch. AND you get veggies, plus the liquid of soup is filling. Just make sure it's brothy and not creamy