This recipe can be used with other poultry, but also with veal escalope.
If you don't have Comté, use another cheese to suit your taste.
It's a recipe that all children love, which is why you can easily find many ready-made cordons bleus on the market, inexpensive and, alas, of very mediocre quality. Try making them yourself, you'll see what a success you'll have!
The recipe can easily be prepared in advance, filling the fillets first, then putting them in the fridge for the next day and breading/cooking, or even freezing them for later.
Once breaded, however, it's best to cook them without delay, or freeze them.