Abstract: An apparatus comprised of a base plate, a heat diffuser plate and cooking surface, plate, with or without handles and situated an adequate distance, one above the other, to be used with existing conventional outdoor grill. Plurality spacers located intermittently around the plates provide support and separation. The apparatus is placed directly onto the existing grill and is of sufficient and variant size to hold food for cooking and to fit with an existing grill. This grill accessory is constructed of materials which are not subject to easy degradation by heat produced by outdoor grills and is designed with fixed or removable plates. A variation being an independent outdoor grill that embodies the multiple bottom grill accessory as an intrinsic part of its structure. The multiple bottom grill accessory converts the outdoor grill cooking process to the likes of an oven, thus cooking foods not normally cooked on a grill in a healthier manner.