If you're looking for sushi, you might want to try the Ichiban at Jarvis and Adelaide. The only caution is, that while the sushi is yummy and inexpensive, the service is wildly uneven. You might want to sit at the sushi bar if you're serious about the sushi. They make a great unagi (bbq eel), and their raw fish is fresh and tasty. Don't buy sushi from those stands in shopping malls, it's not fresh, but it is overpriced.
If you want to eat dinner in a Haunted Mansion, try the Keg Mansion at Jarvis and Wellesley (any taxi driver in the city knows the Keg Mansion). It's a steakhouse chain restaurant (reasonably good for midrange steak and seafood, really good appetizers, "Keg-sized" drinks), but this location is the old Massey mansion, and it's reputed to be haunted.
ETA: I know JerseyShark doesn't care for the Keg, but I can't afford the steak places he eats at, so maybe I've just never had the caliber of steaks he's used to. I like the Keg's steaks for the most part, but YMMV.
Kungaloosh!
Morticia.