Well to start with I think it works best with fried chicken breasts. I have made it with just plain chicken breast but it's not as good. My DH always cuts the breasts in half making two thinner pieces, you can do this, or some may pound their breast to make it thinner. I don't bother with the pounding process as I like the breast to be a little thicker and by cutting the breast the way DH does thins the breasts out to my desired thickness.
When/if you fry the chicken, I like to brown the outside which does cook the chicken somewhat but not all the way. I put the breasts in a casserole dish and add tomato sauce, place in the oven at 350 for 30-40 minutes or so (until almost done) then add the cheese and continue cooking in the oven until the cheese is melted and chicken is fully cooked.
As you can see, having the chicken breasts cooked ahead of time will save a lot of time and mess. Makes for a much easier cleanup process. I'm always looking for ways to make my life easier.
I hope this helps and that if you try it, that it works for you. Bon Appetit!