Yes I have this recipe, maybe with ckn brst being so large they changed it to 6. But the temp I used is 225 for 3 hrs. low, and slow. The creamy sauce is great as gravy over mashed potatoes. I always use the full can of soup and full 8oz container of sour cream. My boys loved it, they are men now and still love it :)
I have not tried this recipe. I got it from a community cookbook. My copy is slightly different it calls for 8 boneless skinless chicken breasts, 8 slices bacon, 4oz chipped beef, 1 can cream of mushrrom soup. The rest is the same. Bake time is different it says to bake at 275 uncovered for 3 hours. Thanks for posting christine (internetnut)
Cook it at 375 for 3 hours. I would think that it qould be burnt to a crisp.