If I could order any food item, it would be wagyu (a.k.a. kobe).
Yama Shabu AAA-Private Stock 175$/10 lbs.
I would make it into a delicious beef tataki (marinated raw beef served over onions and topped with creamy mayo like sauce). I am drooling as I type. My favorite Japanese restaurant here used to serve beef tataki made from wagyu, but since the madcow scare in Japan they have basically stopped importing to America. Typically, I only eat my beef medium well to well done (depending on who's cooking) because it's more flavorful to me. I make the exception with this dish because if it's prepared right, the meat just melts into your mouth. It's not chewy or tendony when raw like beef here. It's pure deep red tender beefy goodness. American beef is just not the same. (Most wagyu are grown here, but they are a Japanese type of cow.)
A close secondary choice would be carpaccio.
Something I long to eat more is shark fin soup.
Unfortunately, they are being overfished due to popularity of this delicious soup. Not only is it affecting the ecosystem, but the price of a decent bowl (just one bowl) of soup starts at about 100$. Some places replace shark fin with a different kind of fish, but it's just not the same. The imitation shark fin is rubbery and chewy.
Something else I haven't had in quite some time, but love so so much is quail.
So far, I've only ever eaten them at Chinese wedding banquets. I think the way I usually have them are roasted. It's so delicious, but so tiny. When they're alive they make really cute noises as they run away with little dingle balls hanging from their head. I can only think of how delicious they are when I go hiking and see them.
I would also someday like to identify the only Indian curry I've enjoyed. It was a mild curry, not spicy at all. The sauce was a beige yellow-orange mildly thick consistency. Underneath the tasty pumpkin chunks that were soft like cooked zucchini. The flavor was not at all sweet (like all the recipes for pumpkin I keep finding and not liking).
Then there are the various animals I still would like to try: kangaroo, venison, bear, scorpion, snake, iguana, and elk. And the ones I have tried and liked: alligator, ostrich, and buffalo.
Kitsune Udon.
I love big chewy noodles and soup broth.
Not only do I find myself dreaming about these food items, but thoughts of them often haunt me when I'm awake as well.