I've been coming to Yummy BBQ for many years and it's still one of my top Korean picks. It is by far, not a fancy place though; it's quite shabby, but the food is great!
My favorite dish is that absolutely HUGE Yummy Special which includes a bit of every BBQ meat they offer plus sides and your usual selection of Banchan.
More recently, I went with a group and we decided to change things up and one of our orders was the large skillet of Kimchi Rice. I was floored by how good this was and it's inspired me to start making Kimchi Rice at home as well. I'm sure you can find other good Korean places around Toronto but if you are in this particular part of Town, Yummy BBQ is your best Korean option!