need help with brunch for a bunch

So our holiday brunch went from about 14 people last year to at last count 37! I want to try and make it as painless as possible while also serving great food. So far I have baked french toast, banana bread, muffins and some salads on tap. Booze and other drinks are already handled. I have always done a fritatta but worry that I would have to make several and thats tough to do with only 1 non stick skillet! Does anyone have any other for a crowd egg recipes? Or anything else that I can add to make in advance? The beauty of the french toast is you make it the day before and then just bake off and its easy to multiply - any others like those! I dont want to have to resort to bagels! Thanks all and happy holidays!