The Upper Peninsula's lunch options don't stop at the pasty, though—just ask the Ambassador in Houghton. Featuring salads, nachos, sandwiches and pasta, it's a great lunch stop. The king of the Ambassador's offerings, however, is its tostada pizza. Essentially a massive taco in pizza form, this wonder of lunch features ground beef, white colby cheese, cheddar cheese, lettuce, tomato, and hot sauce all in one.