Right now many foods provide diminishing returns for higher level players. A good solution for this is maturing stew and preserving foods for FEP bonuses.
Stews could require onions or leeks as ingredients and while taking a long time to slow cook, would ultimately provide a good food experience. Like tea or beer, being several servings per quaff.
The time consumption and more effort required could justify more FEP gain. Depending on the ingredients thrown in, it could change what food experience type you get. Fish for intelligence and the like. Would be interesting, I believe many would enjoy an upgrade of this type.
Stew could go through several stages just like cheese.
Now that Quality has been implemented - BUMP