I'm not sure how I came up with this but my family and friends love it. Best of all - it's easy!
Spray a baking dish. Take thin chicken breasts (Costco-Kirkland tenderloins work great) dip them in egg and then Parmesan cheese (I double dip them). Put them in the baking dish and top with crumbled Feta cheese. Bake at 350 until chicken is done - approx. 1/2 to 3/4 hr. Don't over-bake. Enjoy!