Generously butter an 9x13 baking dish. Tear onion rolls into chunks and place them in the bottom of the baking dish. Sprinkle with cheddar cheese, then tear cream cheese into small pieces and place over the top. Cut 1 ½ sticks butter into pats and place over the top.Mix remaining ingredients and pour over the top of the dish. Cover and refrigerate overnight.The next morning, bake at 325 degrees, covered, for 45 minutes. The remove foil and continue baking at 350 for 10-15 minutes.Eat. Faint. Repeat.