Can't say I share your experiences with that... In recent versions, I don't usually die before reaching level 12-15 at all and food is really only an issue in the beginning of the game, because you usually mostly survive by hacking up enemy corpses anyway.Comparing ToME to crawl is IMO very funny because last time I played it (long time ago I admit) it felt much much worse than T4. I had to dive to find food, I could meet monsters that would simply oneshoot me on a very frequent basis..
It's strange that you'd say that, really, because as far as I know Crawl has a reputation for being unusually fair in this kind of thing. When you die, it really is because you made a bad decision (standing and fighting when the shit hits the fan instead of teleporting etc.) most of the time. Out-of-depth monsters don't really exist, and when you get killed it's mostly because of attrition instead of because you got one-shotted or hit with a bad status effect. Even poison and illness aren't too bad, because healing potions heal basically everything except stat damage and mutation.
Certain branch dungeons and the endgame can be much harder, but in the main dungeon you shouldn't really be getting one-shotted like that at all. Maybe you should try a more recent version? The game has changed a lot since it became Crawl Stone Soup. Also, the Auto-Exploring and Pathfinding features are amazing, playing a roguelike without them feels really tedious in comparison.
It wouldn't work for ToME anyway. The food counter in Crawl is supposed to stop you from just sitting in a safe area and slowly grinding for XP and gear, not for realism. Crawl is all about limited resources (items and monsters don't really respawn, you can't sell stuff for more gold, food is rare, etc.) In ToME it would just be annoying to have to eat something every four steps on the overworld.If I added a food counter you'd play the same way but I hate food counters, they always feel silly, either too fast or too slow.