Ingredients for 4 servings:
600gr potatoes
400gr green beans
50gr bacon
100gr fontina cheese
50gr butter
1 onion

Preparation:
Peel and wash potatoes, boil in cold water.
As soon as water boils, add green beans (washed and pitted).
Add salt and cook.

In the meanwhile, in a medium pan sear a sliced onion with stick bacon. Bacon should not dry too much.

When vegetables are cooked, pour them in the pan with bacon. Stir well with a wooden spoon, reduce all sauce and crush vegetable a bit.

Slice cheese and arrange all over vegetables, cover the pan.
When cheese melts, turn off and serve immediately.