Glazed Salmon

Heat a medium-sized nonstick skillet and spray with vegetable oil spray.

Transfer salmon to plate; add vinegar to skillet and cook on high heat until reduced by half, about 3 minutes. Lower heat and add mustard, mixing well to make a smooth glaze. Salt and pepper salmon, return to skillet and cook 1 minute. Turn to coat both sides with the glaze and cook another minute or two, until cooked through.