usually cereal - often weetabix, or special k sustain or shreddies.
My favourite is full english - which is what I had today because I stayed in a hotel last night (I always eat cooked breakfast when I stay in a hotel)
I had: bacon, sausage, scrambled egg, beans, mushroom, tomato and hash brown plus orange juice, a small bowl of cereal and some fruit salad. It was fab.