Googled Toronto food staples and Peameal was on the list. Yelp said Carousel was the best for it.
Located in the St Lawrence Market. Street meter parking. Cash only. Sandwich came out quick and hot.
Peameal Bacon Sandwich - $6.45 - Crispy lean bacon in a roll. Meat was so salty. Needed some cheese, vegetable, or sauce to help cut the saltiness. Would rate it a 3.5 but it get a 3.