3 picks for grabbing a burger outdoors

May is the time of year when the warming sun lures everyone outdoors. May is also National Burger Month. What, then, could be more apropos than eating a burger al fresco?

Here are three places to catch a breeze and bite into a burger.

Classic fast-food burgers, hand-cut fries and thick shakes are the order at this much-beloved stand. Sun lovers will find nine outdoor tables -- no umbrellas, though.