1 (20 oz.) can pineapple slices
1 (17 oz.) can yams, drained
1/4 c. flour
3 tbsp. brown sugar
1/2 tsp. cinnamon
1/8 tsp. salt
3 tbsp. butter
1/4 c. nuts, chopped
1 c. marshmallows

Drain pineapple, saving 1/4 cup syrup. Line sides of pan with slices. Arrange yams in center. Pour pineapple syrup over yams. Mix flour, brown sugar, cinnamon, salt and butter until course crumbs. Add nuts. Sprinkle over yams. Bake at 350 degrees for 25 minutes. Add marshmallows and broil until brown.