I eat a Mediterranean breakfast, but I don't smoke so I just have a coffee ️
And a large glass of water. If I'm really low on energy I'll have a fruit.
I've heard all life that breakfast is the most important meal, but it turns out to be a marketing slogan, and it might actually be good with a long period without high blood sugar.
I don't know how busy you are, but my way of dealing with "no time to prepare breakfast" is to prepare it the previous evening. Of course this only works if you have the time to cook sometime during the day, but if you are making dinner anyway, simply adding more of everything isn't too time-consuming.