Crockery Cherry Cobbler
["2 (21 oz.) cans cherry pie filling", "18 1/4 oz. pkg. yellow cake mix", "1/4 c. butter, softened", "1/2 c. chopped nuts (optional)"]
["Pour pie filling into a 5-quart slow cooker. Spread evenly."]
["cherry pie filling", "yellow cake mix", "butter", "nuts"]