If I'm honest, I don't think my LOs have really woken up early from naps to eat outside of the first few weeks or so. It was usually that the routine was off or something like teeth were bothering them. I was never very successful with resettling before being on one nap, but the fact that if I tweaked the routine or gave pain meds when necessary and got the long naps back suggests to me that eating on waking wasn't the cause of bad naps. It's not like they go straight from being asleep to feeding anyway (at least not the way I've done it) - its usually 5 mins or so while we put lights on, get up, out of sleeping bag, go downstairs etc etc, none of which I'd be doing if I was trying to resettle iyswim?