A Coventry landmark for many years, Tommy's has a large selection of vegetarian (and non-veg) menu items. I recommend the milkshakes most of all.
Seating always seems to be a wait (10-20 minutes usually), but there are a couple of benches if handicap accessibility is an issue. The restaurant and restrooms are consistently clean.
Tommy's is always very noisy, so this is not the place for a quiet conversation.