Preheat your air fryer to 400°F (200°C).
Arrange the bacon slices in a single layer in the air fryer basket.
Cook the bacon for 6-8 minutes, flipping halfway.
While the bacon is cooking, crack the eggs into a bowl and whisk with salt and pepper.
Prepare the air fryer for the eggs by using a small, oven-safe dish or ramekin.
Pour the whisked eggs into the dish and place it in the air fryer.
Cook the eggs for 6-8 minutes or until set.
Toast the English muffins or bagels in the air fryer for 2-3 minutes.
Assemble the sandwich by placing bacon, eggs, and cheese on one half of the toasted muffin.
Top with the other half of the muffin or bagel and serve immediately.