Add Yahoo as a preferred source to see more of our stories on Google. Any day is a good day for a hamburger, but on Thursday, May 28, which is National Hamburger Day, you can get a deal on one.

The hamburger is already perhaps the most celebrated main dish in the United States. But even with all the love, the burger still deserves its own day. This year, National Hamburger Day falls on ...

Any day is a good day for a hamburger, but on Thursday, May 28, which is National Hamburger Day, you can get a deal on one. Hamburgers are among Americans' favorite foods and often come paired with ...