Cherry Crisp

21 ounce can cherry pie filling
1/2 cup quick oats
2/3 cup brown sugar
1/2 cup flour
1 teaspoon white sugar
1/3 cup softened butter

Spray crock with Pam. Pour cherry pie filling in crockpot. Combine oats, brown sugar, flour, white sugar and butter. Cut butter in with a fork to make a crumb mixture; sprinkle over filling. Cook on low 5 hours.