E-Z Chili

Yield:	10 servings
Categories:	BBQ

2	ts	Oil
1		Onion; chopped
1	lb	Ground beef; (optional for
		; non-vegetarians)
3	lb	Canned crushed tomatoes; (2 cans)
3	lb	Canned chili beans; (2 cans)
2	ts	Chili powder
1/4	c	Grated nacho cheese