Try eating more carbs and protein and less fat. Fat is more satiating, and you’ll end up eating less in total.
Contrarily what you hear a lot, I’d also start eating more on your rest days.
I had the weight loss problem when I first started cycling, and very quickly went to a lot of volume, 15+ hours a week. No real intensity, I just spend the whole day on my bike. I just couldn’t keep up with eating, especially as exercise seems to surpress my appetite. However, at some point I learned to eat more, and I also hink my body adapted to the load, and now I’d love to get rid of a few pounds again…