Preheat your oven to 375°F (190°C).

In a mixing bowl, combine ground beef, breadcrumbs, diced onion, shredded cheddar cheese, salt, and pepper.

Create a well in the mixture and crack an egg into it. Mix thoroughly until incorporated.

In a separate bowl, combine ketchup and finely chopped chipotle pepper and mix well.

Portion the mixture into small loaves or use a muffin tin for individual servings.

Coat each mini meatloaf with the chipotle glaze before baking.

Bake for 20-25 minutes, until the internal temperature reaches 160°F (71°C).

Let cool for a few minutes before serving warm.