Regions/Cultures And Their Foods: Frosted Sun Unnecessary Lore.
Large kingdom's nobility tend to have a focus on decadence. Usually, they lean more into sugar(which has to be grown in greenhouses) preservation than salt or vinegar. Sweet wines & sauces leads to lots of leafy accomodations, which have a purpler hue once cooked. I imagine there'd be lots of honeyed meats, salads, family dinners, etcetera. Noodles are common too, but usually rice noodles instead of wheat. For a real world equivalent, I'm think of pad thai, japanese curries from my hometown, and a really good french duck i had once.
(Kejota, Celestine Cycles, Minabelle)
Suburbia Of Large Kingdoms
The suburbia of large kingdoms is very disappointing to me but somewhere had to have the food i hate. In one word: bland. Their preservation is through plain old cooking. Boil the parasites out. If it's grey, there's nothing infectious left alive. Think of school lunch. Very good canning, admittedly- this leads to delightfully preserved fruits and pickles, which are usually traded with other towns in small markets. For a real world equivalent, USAmerican school lunch. (Also honey is a big export for larger countries)
Academia Of Small Countries (Western)
Western Academia trends more towards curries and heavily seasoned soups. Things that you can live off of for 2 weeks without abandoning your project for extra seasoning. Less sugar shows up in smaller countries, instead there's usually some sort of chemical preservatives. In western side of Academia, they use actual magic for it. It doesn't affect the taste or expiration time, it's all just placebo, and you will absolutely still get poisoning. Real world equivalents: my grandpa's curry, and the thai place in my hometown's bamboo shoot soup
Academia Of Small Countries (Eastern)
Eastern Academia trends towards italian food. I have no good argument here. I needed my pasta dishes & tomatoes okay?? For preservation they trend towards alcohol or vinegars.
Rural Regions Of Small Countries
The more localised, the more specific food you'll find. Much more meats & salts overall, and less leafy greens, which get replaced by breads & veggies. The wide food spectrum sometimes draws from pure fiction, sometimes from scandinavian baking, sometimes from the fucked up things i came up with at 3am, sometimes taco johns food, sometimes latin american food, sometimes indonesian food, it's randomized.
(Eryll, Sabas, Willow, Freya)