Denver Omelet Sandwiches

Position rack in upper third of oven; preheat broiler. Coat a large rimmed baking sheet with cooking spray.

Place English muffins split-side-up on one side of the baking sheet and place Canadian bacon on the other side. Broil until the bacon is hot and the muffins are toasted, about 2 minutes. Divide cheese among 4 muffin halves. Turn the broiler off and return the baking sheet to the oven to melt the cheese and keep warm.

Whisk eggs, salt and pepper in a medium bowl. Heat oil in a large nonstick skillet over medium-high heat. Add onion and bell pepper and cook, stirring occasionally, until just starting to brown, 3 to 5 minutes. Spread the vegetables evenly in the pan and pour in the eggs. Reduce heat to medium and cook without stirring, but lifting the edges to let uncooked egg from the middle flow underneath, until the bottom is set, about 2 minutes. Cover and cook until the eggs are fully set, 2 to 4 minutes more.

Fold the omelet in half and slide onto a cutting board. Cut into quarters. Assemble each sandwich with one cheesy muffin half, a slice of bacon, a quarter of the omelet and a remaining muffin half.