Green Beans with Mushrooms and Shallots

Bahan-bahan (4 porsi)

• 1 pound fresh green beans, (trimmed and cut into 1-inch pieces)
• 2 tablespoons olive oil
• 2 medium shallots, (sliced (about 1/3 cup))
• 12 ounces assorted sliced fresh mushrooms
• salt and freshly ground black pepper, (to taste)