This utility model relates to the field of small kitchen appliances, specifically disclosing a lid
assembly for a cooking utensil and the cooking utensil itself. The lid
assembly includes a lid body and a sealing cap assembled on the lid body. The sealing cap includes a snap-fit part that engages with the front side of the lid body and a plug-in plate that inserts into the rear side of the lid body. The lid body has two slots that are respectively adapted to the left and right ends of the plug-in plate, and the two slots are spaced apart in the left-right direction. A foolproof structure is provided between the lid body and the plug-in plate. The foolproof structure includes a protrusion on the lid body and a groove on the plug-in plate. When both ends of the plug-in plate are inserted into their respective slots, the protrusion is embedded in the groove to allow the snap-fit part and the lid body to engage. When one of the left or right ends of the plug-in plate is not inserted into its respective slot, the protrusion abuts against the plug-in plate to prevent the snap-fit part and the lid body from engaging, thereby visually indicating to the user that the installation is incorrect and avoiding air leakage caused by incorrect installation.