21-ounce can blueberry pie filling

1/2 cup rolled oats, uncooked

1/2 cup flour

1/4 cup brown sugar

2 tablespoons chopped walnuts

6 tablespoons butter

Spoon pie filling into greased 1-quart baking dish. Combine oats, flour, brown sugar and walnuts in a  mixing bowl. Cut in butter until mixture resembles coarse crumbs. Sprinkle over pie filling. Bake uncovered at 375 degrees for 45 minutes or until lightly browned and bubbly.