Scrambled eggs, avocado, muesli, some season vegetales some nice juice and a coffee (mandatory to prepare on a Mocca) would make the trick. Simple and easy is best!
À variation of Greek yogurt / homemade yogurt with muesli (granola I think in the US with berries that I picked from the forest); turns out that making yogurt at home is easier than expected so I spend a few minutes preparing it and leave 7 ready to go jars with yogurt inside on the fridge so I can eat it on the train / job break just adding muesli or fruit season. Quick and easy.
I found that eating well is only a matter of preparation and having the good ingredients on the fridge!