Little Henry's is right on a corner location in the tenderloin area. It specializes in Italian cuisine, but serves American fare (including eggs Benedict) till 5pm for under $5. That's still a deal. My last visit there for eggs Benedict wasn't good. They used ham instead of Canadian bacon, the hash browns were burnt and didn't look very appetizing. Their Italian food was pretty good at a better price for lunch.
Don't go in the wintertime when it's so cold outside. When I went, the only heat was from the stove.