From Eat Well, Live Well by Helen Bishop MacDonald and Margaret Howard
1/2 cup chopped leeks
1 tbsp melted butter, divided
3 cups cooked, mashed turnip
2 eggs, separated
1/4 cup milk
3 tbsp all-purpose flour
1 tbsp baking powder
1/2 tsp salt
1/4 tsp ground nutmeg
Dash ground pepper
1/2 cup whole wheat bread crumbs
Cook onion in non-stick skillet in 1 tsp. butter until tender. Add to mashed turnip.
Beat egg whites until stiff; set aside. Beat egg yolks with milk; stir in flour, baking powder, and seasonings. Stir egg-yolk mixture into mashed turnip. Fold in beaten egg whites.
Turn into lightly greased 6-cup baking dish. Combine bread crumbs and remaining melted butter. Sprinkle over turnip. Bake in 375`F oven for about 30 minutes.