Bring a large pot of salted water to a boil. Add green beans and cook for about 1 minute until they turn bright green. Remove to a colander and rinse under cold water.
In a large frying pan, add 1 tablespoon oil and heat over medium high. Add mushrooms and sauté until brown.
Add in goat cheese and mix well while goat cheese is melting.
Toss in green beans, mixing everything well and taste for seasoning.
Tip: This dish can be eaten from the pan, literally, but if you place it in ramekins or a larger casserole you can even top with bread crumbs or even fried onions and bake for about 20 minutes at 350, you will have something very close to the original green bean casserole, but healthier and easier.