Personally, I think you should skip CN Tower and just do the aquarium. I'd also recommend skipping Chinatown since it's a terrible dump.
Places to visit in the city
Distillery District*
Kensington Market*
Yorkville*
Royal Ontario Museum
Downtown core of Yonge/Dundas Square
The PATH (underground network of shops)
Ripley's Aquarium
Toronto Zoo
Ontario Science Centre
Pacific Mall*
St Lawrence Market*
*stuff I actually go to as a local quite often
As for food, you won't get anything here you won't see in NY to be honest. However, we're known for our pork, so if you had to do a taste of crap Toronto is good at:
Peameal bacon sandwich at St Lawrence Market
Bacon sandwich from Rashers is also dangerously good
Butter tart pretty much everywhere has them
Her Father's Cider if you're into cider. Ontario has some good apples for this apparently. Lots of places offer it though.
The Only Cafe if you want a variety of beer.
Chocolate at Soma at the Distillery District is also quite good.
Ontario Spring Water Sake Company is also at the Distillery District.
If you want something a bit more unique, try Black Hoof, just go on their online menu.
For unique desserts, we have Kekou for some kick ass gelato flavours; Tsujiri for some delectable matcha based desserts; Uncle Tetsu and the accompanying Maid Cafe for Japanese cheesecake; Sweet Jesus for some crazy sugar rush ice cream creations; Nadege's for baked goods though there's a lot in the city that's good.
For food, Wvrst if you want to try some sausages made out of uncommon meat; and don't let anyone tell you otherwise, ESPECIALLY Summer haters like Evilmario, but Holy Chuck, Burger's Priest, and supposedly P&L Burger (though I don't agree myself) offer amazing burgers; and if you want authentic Neapolitan pizza, we have Pizzeria Libretto; for a bit more of a unique take on sushi you can try JaBistro, which blowtorches it and makes your mouth water; I haven't had poutine in Toronto in ages and it's not particularly good, but I guess Poutini is there if you want.
If you want even more high end and expensive stuff
Jacob's Steakhouse
Harbour Sixty Steakhouse
The Keg Mansion (franchise but this one location is unique)
Scaramouche
Bar Buca
Canoe
Alo
Luckee
Richmond Station
George Restaurant