Place the bagel bites on a greased baking sheet about 1 inch apart.
Top 9 of the bagel bites with 1 slice of Canadian bacon and a few chunks of pineapple.
Bake for 10-12 minutes or until cheese has melted.
Once they have cooled take 1 bagel bite without additional toppings and place it on top of the bagel bite with the additional toppings to form the slider.