This recipe is from one of my first veggie cookbooks, The Apartment Vegetarian Cookbook . You might be able to find this book somewhere used. This recipe is really, really good and it deserves to be preserved!
In a saucepan, melt a tablespoon of butter. Saute the millet until it turns a bit brown. add salt and water. Bring o a boil, then lower heat and simmer until millet is tender, about 25 minutes.
Meanwhile, make the cheese sauce by 2 tablespoons of butter in a saucepan. Add milk, sage, and grated cheese.Stir over low heat until melty - or microwave it to avoid burning. Stir in the cooked millet.
Turn into an oiled casserole and bake at 350 for 15 to 20 minutes until it begins to brown on top. Or, refrigerate until close to mealtime, then bake for about half an hour.