Brown meat; add 3/4 cup of onion and the celery; cook till just tender.
Drain off excess fat.
Add chili and pepper; heat.
Place layer of chips in ungreased 1 1/2-quart casserole.
Alternate layers of chili mixture, chips, and cheese, reserving 1/2 cup chips and 1/4 cup cheese for trim.
Sprinkle center with reserved cheese and onion.
Cover and bake at 350° for 10 minutes or till hot through.
To serve, border casserole with corn chips.