Replying to Pre skiing breakfast

Doing my first ski season (yay!!!) and to pay for it I'm teaching which means early starts and long days teaching kids.

My apartment is fairly limited cooking facilities wise. I was wondering what all you guys do for a quick breakfast (or something you can make the night before) that loads of you up on the good stuff and keeps you going for the day.

Seems like a fairly stupid question but looking for ideas as all the ones I have will get boring or are time consuming.

Cheers