1 box yellow cake mix
1 large can peaches
1 1/2 sticks butter

Preheat oven at 350°F. Spray lightly the bottom of casserole dish with Pam. Pour dry cake mix in dish. Add canned peaches with juice; cut butter into pats and place on top of peaches and cake mix. Wiggle some butter down into mixture. Cook for about 30 to 45 minutes at 350°F.