is an easy choice for those wanting a lower-calorie fast-food option ... and grilled onions to add a bit of color and nutrients." To make this among the healthiest of fast-food burgers, you can also ...
Once melted, mix cut onions with a pinch of salt and stir. Add a pinch of salt to the sliced onions and cook until tender and golden brown. Assemble the burger by placing a cheese slice and the cooked ...