Preheat the oven to 375°F and lightly grease a loaf pan.
In a large bowl, combine the ground beef, thawed corn, chopped chipotle peppers, adobo sauce, breadcrumbs, egg, onion, garlic, cumin, smoked paprika, salt, and black pepper.
Add the chopped cilantro and mix everything with your hands until the ingredients are evenly distributed.
Press the mixture firmly into the prepared loaf pan and smooth the top.
Stir together the ketchup with any remaining adobo sauce if desired, then spread it over the top of the meatloaf.
Bake for 50 to 55 minutes, or until the internal temperature reaches 160°F.
Let the meatloaf rest for 10 minutes before slicing and serving.