Product review (3 stars): Good idea but needs to be bigger
I purchased this lid hoping to use it to cover my 9x13 cake pan. This lid works well for covering pans and serving dishes that are smaller than 9 x13. However it is not suitable to cover a pan that is 9x13, such as a standard aluminum cake / roasting pan.  The lid sits inside the pan and touches the food.  It does work well  to cover a smaller casserole dish for baking in the oven but the stains from tomato sauce did not come out even after washing in a dishwasher. I might order this again if it were bigger.