Three Mushroom Wellington

Name: Three Mushroom Wellington
Ingredients: 1/3 cup dried porcini mushrooms; 2 cups boiling water; 2 tablespoons butter; 2 tablespoons extra virgin olive oil; 2 large shallots, minced; 1 large clove garlic, minced; 20 ounces fresh button mushrooms; 1 teaspoon fresh thyme leaves; 1 teaspoon salt; 1 teaspoon black pepper; 1/4 cup dry red wine (Merlot is a good choice); 2 teaspoons Dijon mustard; 4 nice size portobello mushrooms; A little olive oil; one 17.3 ounce package of puff pastry sheets, thawed if frozen; 1 egg mixed with 2 tablespoons water