It's mainly packets to make this, but if you're late back from work and have to cook for the family, or unexpected guests, it's a lifesaver. It's also good low-calorie food. Takes about 15 to 20 minutes.
You can add other ingredients (hard-boiled eggs, peas, oats, etc.) to make it slightly different each time. Adding oat bran is a good way to smuggle in oats and fibre. Leftovers go well with toast and more sauce - if you have any leftovers.