Cut five large rings from the onion. Then make the holes in the pineapple rings larger using a knife. Use the pineapple rings as stencils to cut the slices of cheese into rings. Now add the onion rings for that crowning touch.
Wrap each ring with five slices of bacon. Fry them in a pan and spread barbecue sauce on them.
To finish, bake the rings at 320°F for 10 minutes in the oven.