Apple Bean Bake

48 ounce jar Great Northern beans -- drained

4 tablespoons butter or margarine

3 cups tart cooking apples -- peeled, cubed

1/2 cup chopped onion

3/4 cup light brown sugar

1/2 cup catsup

1 teaspoon cinnamon

1 teaspoon salt -- or to taste

Melt butter in a large skillet. Add apples and onions. Cook for 10 minutes or until apples are tender, stirring occasionally. Add brown sugar nad stir until dissolved. Blend in catsup, cinnamon and salt. Place beans in 2 quart casserole. Pour apple mixture over beans and mix well. Bake in a preheated 375? oven for 1 hour.