Title says it all.
You cooked something for yourself, or your family, or friends, or etc. You're about to eat it, but then the moment the food is in your mouth you immediately realize this is a bad dish.
How do you deal with it? Just throw the whole thing away? Or try adding other spices to change the flavors?
For me, I try using A1 BBQ sauce, which almost always works on all bad dishes.