The warmer days are upon us here in UK and I can't wait for my first full summer with a road bike. I intend to join the local cycling club very soon to meet other people into cycling and to learn group cycling. I hear it is much more enjoyable than going out solo.

What is a good choice of food to eat for breakfast breakfast,an, whilst on the bike? Usually I will have a big bowl of cereal then head out for around 50-60 miles mostly flat and find 2 bananas keeps me going sufficiently but I want to make my diet more effective, and find a food that's easier to eat on the bike (this is something I am not very good at)

So, breakfast?
Someone has advised me a big bowl of porridge oats with some bananas and sugar plus other fruits of choice. Would this be a good meal before a long day on the bike?

And what is best for eating while on the bike? Like I say
I want something that is easy to open and consume but it must also give fast energy release, yes?