Instructions

  1. Preheat oven to 375 degrees.
  2. Drain mushrooms and measure liquid, add enough chicken stock to make 1 cup.
  3. Saute onions gently in 3 tbsp butter for 5 minutes.
  4. Blend in flour.
  5. Add reserved mushroom liquid-chicken stock mixture and wine.
  6. Cook, stirring until mixture boils and thickens.
  7. Add cheese, salt, and pepper.
  8. Combine this sauce with the mushrooms and beans.
  9. Turn into a greased casserole dish.
  10. Mix bread crumbs with melted butter.
  11. Sprinkle over vegetables.
  12. Bake at 375 degrees for 25 minutes.