Brown beef with onion, bell peppers, and celery. Drain.
Add all ingredients to roaster pan. Mix well. Cook on 400 for 3-4 hours to ensure all flavors mix well and chili gets hot.
Makes enough chili for an 18-quart roaster pan, which is 4.5 gallons of chili to feed 30-40 people.
Most measurements are approximate. If you have just 90 ounces of tomatoes, use that. Want to use less beans? Use less. Want a really meaty chili? Use more beef. There's lots of flexibility here.