Instructions

  1. Thaw and drain green beans. Set aside.
  2. Add olive oil to a medium saucepan or small pot. Add 4 tablespoons butter, and heat on medium-high until melted.
  3. Finely chop mushrooms and onions and add to the butter and olive oil mixture. Heat until mushrooms darken and shrink, and onions become soft and translucent.
  4. Remove from heat. Add three tablespoons of flour and mix together.
  5. Add 1 1/2 cups of broth, salt, pepper (and any other spices you'd like), and heat on medium-high again until somewhat reduced. Add additional flour for a thicker sauce/soup.
  6. Pour over green beans and heat in the oven at 350°F for 30 minutes.
  7. Sprinkle french fried onions on top and bake an additional 5-10 minutes.