Lovely little parcels of mushrooms in a cream sauce, perfect with drinks before dinner.
2 1/2 tbsp butter
2 cups mushrooms, finely chopped
1/2 tsp lemon juice
1 green onion, finely chopped
1 1/2 tbsp flour
1 cup half-and-half cream
2 pkg refrigerator crescent dough
1 egg yolk
1 tbsp water
salt and pepper, to taste