I think I’m getting strangely obsessed with Tim Hortons’. Here’s my Supreme Stack burger here at Toronto’s Union Station. Instead of the usual beef patty burger, it has layers of thinly-sliced steak, double-smoked bacon, caramelized onions, not to mention three cheeses: cheddar, mozzarella and Monterey Jack. With a creamy peppercorn sauce served on a toasted potato bun