could try for example a whole grain toast with some peanut butter and a sliced banana on top. it will give you the energy you need, without feeling that full.
fair play to you that is great! i did it for a few years and it did make a difference. i know now because i am not doing it!!!
i don’t like to eat too much before a workout but i need to eat something that will give me energy so i usually go for some fruit like a handful of berries or banana or a handful of a whole grain cereal. and of course plenty of water.
i agree with the other 