1 Heat oven to 350° F. Combine ground beef, onion, bread crumbs, egg, chipotle pepper, salt and black pepper in large bowl, mixing lightly but thoroughly.
Divide beef mixture in half. Shape each half into 8×4-inch loaf. Place 1 loaf on rack in broiler pan. Arrange half of the poblano pepper strips lengthwise over loaf, leaving 1/4-inch border around edge. Sprinkle cheese over peppers; top with remaining pep
Bake in 350° F over 1 hour and 10 minutes to 1 hour and 20 minutes, until instant-read thermometer inserted into center registers 160° F.