Saturday morning I made for the first time Monte Cristo (croques messieurs) sandwiches for me and Other Robert here. Came up a little short on egg, and I baked them instead of frying, with sliced potato. Ham, Swiss cheese, yellow onion rings, and Grey Poupon on the sandwiches before cooking. Only the bread (white) was dipped in egg-milk mixture, and 2 large eggs still wasn't quite enough for 2 sandwiches.
I've read online that some make Monte Cristos with powdered sugar on the bread, like breakfast French toast. Blech! Sometimes sweet stuff could go OK with ham, but seems to me that'd be a bad taste with Swiss cheese.