What can I make with the broken corn chips at the bottom of the bag?
They're generally good for adding some crunch, too, not just the flavor. A few things that come to mind:


on top of a salad - my family does a roasted corn and black bean salad; also probably good instead of croutons in salads where they're a better flavor/style fit
garnish on a soup - tortilla soup, sopa de elote...
as part of a breading for fish or chicken (or anything else to bake or fry)


In general, anywhere you would use breadcrumbs, tortilla chip crumbles might find a place. If you're afraid they're too salty, you could always put dump them in a sieve and shake some of the really small bits out, leaving the more sizable bits of chip.