The secret to a juicy, lean burger is to avoid pressing down on the patty while it's cooking so it retains its juices. Sweet, yet savory, grilled onions bump up the flavor and make these burgers taste deliciously gourmet. To avoid watering eyes when prepping the onions, peel and chill them before slicing into rings. And, they’ll stay intact while flipping them on the grill if you use a large pair tongs instead of a spatula. This recipe only calls for topping the burgers with tomatoes, but a handful of arugula, spinach, or other tender lettuce leaves would make a tasty addition too. |