As the Rocky Mountaineer train from Vancouver slowly gathered speed, I sank into my plush window seat. I couldn’t wait to be surrounded by the pristine rivers, alpine peaks, and native wildlife of Western Canada.   What I didn’t anticipate was the culinary adventure ahead. Within minutes, I was devouring Eggs Benedict with Canadian back bacon. My three-course lunch later that day featured Dungeness crab ravioli and generous pours of Jackson-Triggs wines.   Dining on the Rocky Mountaineer train was nearly as inspiring as the...