Preheat the Oven: Preheat your oven to 375°F (190°C). Line a baking sheet or loaf pan with parchment paper.
Prepare the Meatloaf Mixture: In a large bowl, combine ground beef, ground pork (if using), cheddar cheese, bread crumbs, milk, ketchup, mustard, egg, diced onion, garlic powder, salt, and pepper. Mix until just combined — avoid over-mixing to keep the meatloaf tender.
Shape the Meatloaf: Shape the mixture into a loaf on the prepared baking sheet or in a loaf pan.
Add the Bacon: Lay the partially cooked bacon strips over the top of the meatloaf, tucking the edges underneath to secure.
Bake: Bake for 45–60 minutes, or until the internal temperature reaches 160°F (71°C). Halfway through baking, brush a little ketchup and mustard on top if desired.
Rest and Serve: Let the meatloaf rest for 10 minutes before slicing.
