Cookability

I like white rice with umeboshi plums, which are pickled in salt. (They are cheaper in actual Asian markets than they are if you can get them in the -- ahem -- ethnic aisle of a grocery store, which around here is Japanese/Latin American/English/Jewish.) I just cook up the sushi rice and mix up a single plum in the bowl of rice. Incredibly easy.

sauerkraut is a good salt-pickled thing. if you want to go meatless, throw it on a roll with some sautéed tofu and Russian dressing, and instant Rueben. Of course if you are willing to eat meat then fry it in a pan with some salami and you have a salt party.

isn't diet soda very high in sodium? somebody else s throw it uggested Gatorade, which would be better I am sure, but if you like soda and dislike Gatorade.

I assume you have already looked at the list of foods to avoid if you have hypertension in order to take their advice in reverse, but here are a few:

http://www.lowsaltfoods.com/food_center/basic_info/avoid.htm
http://www.healthaliciousness.com/articles/what-foods-high-sodium.php
http://www.livestrong.com/article/268212-high-sodium-foods-list/