In 9-inch square pan, spread 1/4 cup of the pasta sauce. Top with 3 noodles; spread 1 cup of the ricotta mixture over noodles. Layer with 1 cup pasta sauce and half each of the sausage, beans, corn and zucchini. Sprinkle zucchini with salt and pepper. Top with 1 cup pasta sauce and 1/2 cup of the shredded cheese. Layer with 3 more noodles, remaining ricotta mixture, 1 cup pasta sauce and remaining sausage, beans, corn and zucchini. Sprinkle with 1/2 cup shredded cheese. Layer with remaining noodles, pasta sauce and shredded cheese.