Preheat oven to 375 degrees.
Melt the butter in a medium saucepan on the stove. Set aside.
Cut your chicken in half and then pound them out thin to make them even. Set aside.
In a large deep dish, crush the Ritz crackers into crumbs. I find it best to use a potato masher.
Add in the Ranch seasoning and parmesan cheese into the Ritz crackers and mix well.
Spray a 9x13 baking dish with cooking spray. Lay the chicken in the butter to fully coat it. Then lay the chicken in the Ritz cracker mixture and coat both sides with the crumbs. Lay the chicken in the baking dish. Repeat with all the pieces of chicken.
Bake at 375 degrees for 30-40 minutes.
Enjoy!