Oatmeal is my favorite breakfast to have during the work week, as it's quick to make and it really fills me up to get through the morning.
I like to use quick-cooking oats, as it only takes a few minutes to cook the oatmeal.
My favorite oatmeal to use is McCann's Quick Cooking Rolled Irish Oats.
If using frozen fruit, add extra liquid when cooking the oatmeal to help quickly defrost the frozen fruit with the very hot (extra) water.
If adding peanuts, make sure to use unsalted peanuts, as the salted version does work well in oatmeal.