Heat the oven to 400 degrees F.
Place the English muffin halves on a baking sheet that is lined with parchment paper or baking liner. Make sure that the cut side is up.
Spoon pizza sauce onto each slice of muffin.
Top with cheese, pineapple, and Canadian bacon.
Bake at 400 degrees for 10 - 12 minutes until cheese is melted. Serve immediately.