Spray skillet with cooking spray and heat over medium.

Dice pepper and tomato; set tomatoes aside and add pepper to hot skillet.

Whisk eggs together and season with salt and pepper. Add to peppers. Cook until eggs are no longer runny, stirring to scramble. Add tomatoes and heat through.

Toast bread; mash avocado. Spread avocado on each slice of bread.

Serve eggs alongside avocado toast with apple slices on the side.