A pet scoop assembly and method of use is provided. The assembly includes a scoop member; a receptacle detachably engageable with the scoop member; and a door disposed intermediate the two. A disposable bag may line the receptacle and be clamped in place between the receptacle and scoop member. The door opens inwardly into the receptacle. When the scoop assembly is turned into a vertical orientation, the door opens by a weighted member attached to the door. A region of the scoop member adjacent the door is angled to allow pet waste to slide readily from the scoop member into the receptacle.