Sauté the mushrooms, with salt to taste.
Heat a pan one cube butter and add 3tbsp all-purpose flour
and sauté for a minute.
Add milk, salt and pepper, make it thick.
Add to the beans and mushrooms and mix well.
Preheat oven for 350 degree.
Take a baking pan pour the dough into it.
Add cheese and Spread them evenly.
Sprinkle bread crumps cover the pan.
Sprinkle fried onions (Optional)Bake it for 20 minutes.