I eat low carb. I usually make and freeze a bulk of LC muffins, waffles, or pancakes. Then I can just pop them in the toaster or microwave each morning.
My kiddos eat a variety of different things so they won't get tired of the same old thing. I will make and freeze pancakes or waffles for them, too. They also eat muffins, jelly or cinnamon toast, bagels and cream cheese, instant oatmeal, pop tarts, or fruit and yogurt.
Sometimes we eat bacon and eggs, or I'll make a breakfast casserole the night before and refrigerate it to warm up the next day.