A Scottish Canadian style "Meat Pie" is basically the same as the British Pub meat pie : with large chunks of various root vegetables mixed in so it's sort of like a thickened stew put into a pie shell. Any type of ground or chunked meat, potatoes, carrots, parsnips, turnip, rutabaga, onions and garlic. To name just the most used ones. It's different from a Quebec Tourtière which typically is mainly meat with perhaps lots of onion and garlic.
See this forum thread for a couple of good recipes :
www.ottawafoodies.com
warby