Place The Hot Dogs Onto A Microwave Safe Plate And Cook In The Microwave 1 To 2 Minutes Until Hot. Place The Chili Into A Microwave Safe Bowl And Microwave 1 To 2 Minutes Until Hot. Slice The Hot Dogs In Half Lengthwise, And Place Onto The Bread Slice Cut-Side Down; Sprinkle With Half Of The Cheese, The Chili, The Remaining Cheese, Onion, And Mustard.