Yes, stoneware and glass options, such as Corelle and Duralex Ovenchef Lead-Free rectangular glass, are considered safer alternatives to earthenware. These materials are non-porous and less likely to contain lead or other toxic substances. Libbey Baker's Glass, Pyrex Basics Clear Glass, and Anchor Hocking Laurel Embossed Rosewater Bake and Serve Set are also recommended lead-free casserole dishes.