Place a slice of Canadian bacon and cheese on top of each muffin.
Pour the egg whites into a bowl and add a splash of milk. Whisk for a few seconds and season with salt and pepper.
Heat a skillet on medium and spray with cooking spray. Add the egg whites and cook through. Remove and place on a cutting board. Use a biscuit cutter to cut six circles out.
Place the egg white circles on top of each English muffin.
Wrap each biscuit in plastic cling wrap and place in a freezer bag.