Preheat oven to 350°. Using a vegetable peeler, cut squash and zucchini into very thin lengthwise strips. In a Dutch oven, cook ravioli according to package directions, adding vegetable strips during last 3 minutes of cooking., Meanwhile, in a small bowl, combine ricotta cheese, egg and garlic salt; set aside. Drain ravioli and vegetables., Spread 1/2 cup marinara sauce into a greased 11x7-in. baking dish. Layer with half of the ravioli and vegetables, half of ricotta mixture, 7 basil leaves and 1 cup marinara sauce. Layer with remaining ravioli, vegetables and marinara sauce. Dollop remaining ricotta mixture over top; sprinkle with Parmesan cheese., Cover and bake 25 minutes. Uncover and bake 5-10 minutes longer or until cheese is melted. Let stand 10 minutes before cutting. Thinly slice remaining basil; sprinkle over top.