I was cooking squash and after tasting it, I discovered that I had added way too much salt. I had heard that you could add a potato to soup when it's over salted so I tried it in the squash. I cut the potato in quarters and put in the pan with the squash and let it cook until the squash was tender. I removed the potato to add sugar to the squash and brown it.
While the squash finished cooking, I ate the potato and it was good. The squash turned out good too. The potato absorbed the extra salt and made it just right.
I had never cooked potatoes in squash before but I believe that would be quite tasty served together. I'll have to try it and not brown the squash.
Fixing chili made with too much salt may be done. There are a number of ways cooks can counter the excess salt in a dish. This is a page about how to fix chili with too much salt.
This is a page about fixing spaghetti sauce that is too salty. Sometimes there are ways to save a meal that cooked up too salty.