Portobello Mushroom Napoleon Appetizers - Pepperidge Farm

Ingredients

• 1/2 of a 17.3-ounce package Pepperidge Farm® Puff Pastry Sheets (1 sheet), thawed
• 2 tablespoons butter
• 8 ounces portobello mushroom, cut into 1/2-inch slices
• 1 small zucchini, thinly sliced crosswise or 1/2 cup sliced drained roasted peppers
• 3 tablespoons chopped fresh basil leaves
• 9 slices deli mozzarella cheese, cut in half and rolled up