Preheat oven to 375°. Put two 6-cup silicone muffin trays on a baking sheet, and coat well with non-stick cooking spray. Crack an egg into each muffin cup.
Cover each egg with a slice of Canadian bacon.
Butter the English muffins and place them buttered-side down on top of the Canadian bacon. Bake for 15 minutes.
Remove from the oven and let rest for 5 minutes. Cover the muffin pan with a platter; flip over. Squeeze each of the muffin cups to release the eggs, then carefully remove.