I am heartened but not surprised to find myself here in the company of other intermittent fasters, and especially unwitting ones: I never set out to fast between mittents, I just noticed that if I skipped breakfast and then powered through the 10am tummy rumbles, I had more energy and felt generally better the rest of the day, so I kept doing it. The 10am tummy rumbles eventually went away too.
Over time I also learned about the benefits of doing this in terms of cellular health, the evidence suggesting it decreases cancer risk, etc., which further encouraged me. Now it would feel very strange to eat before 11am, though many days I don't eat before the afternoon. My "window" ends up being between 11am and 7pm most days, but sometimes is much smaller than that, like 3pm to 6pm.
When I do finally break my "fast", usually the first thing I'll do is swig a few gulps of cold coffee, followed by one or two of my energy balls (
https://permies.com/t/268866/energy-bites-hold-peanut-butter), then whatever else I packed, then usually an apple at the end before I get back to work or driving home or whatever.
I notice that if I eat at, say, 9am then I am much more likely to feel hungry to the point of distraction at noon.
That said, I will sometimes eat breakfast on weekends, sort of as a "splurge" (because I like to cook, and sometimes on weekends I have time to cook in the morning*) and to keep my weight up.
To that last point, I found that since I started intermittent fasting, during my "window" I can eat basically as much as I want, of whatever I want, with virtually no noticeable change in my energy or weight retention or whatever. (It probably also helps that I don't drink alcohol or sugary drinks. Maybe also that I have a physically demanding job, though this was also the case back when I didn't.)
*To address the OP more directly, I used to love having a beer and a fried egg on a Saturday morning. These days it would be a zero-alcohol beer and a fried egg if I was going that route. I am also a fan of dumping whatever veggies I've already got chopped up in the fridge into a pan along with scrambled eggs and sprinkling cheese over it. My grits are legendary and my kids request them constantly. Sometimes I am in the mood for oatmeal with just salt and butter, always with some raw oats mixed in at the end to improve the texture. Leftover Chinese or Indian takeout for breakfast, even cold, has kind of a special place in my heart though it's been a long time since I had any of that ($$$).