Ingredients
Makes 4 servings
Prep time: 50 min
1 tablespoon olive oil
3 onions, medium or large, sliced
pinch of salt
1 tablespoon balsamic vinegar
1 tablespoon olive oil
10 or 15 small mushrooms sliced (I used shiitake with stems removed)
pinch of salt
3 cups spinach
8 oz fettuccine pasta
2/3 cup heavy cream
1/3 cup milk
1 cup grated Parmesan cheese
1/4 teaspoon salt
Preparation
