Grilled Zucchini-Pesto Packets

Instructions

1. Heat grill to medium.
2. Combine the summer squash, zucchini, pesto and red pepper flakes in a large bowl. Add 1/4 cup each asiago and fontina; toss to coat.
3. Spoon vegetable mixture onto two greased double-thickness pieces of aluminum foil, each about 16 x 12 inches. Sprinkle each with 2 tablespoons asiago and 2 tablespoons fontina. Fold foil into packets and seal tightly. Poke several small holes into each packet.
4. Grill packets, covered, over medium heat for 15-18 minutes or until vegetables are tender. Remove packets from the grill. Let stand for 5 minutes. Take care when opening the foil; allow the steam to escape.
5. Serve with remaining asiago and fontina.