- 1 (16 ounce) package lasagna noodles
 - 2 tablespoons vegetable oil
 - 1 onion, chopped
 - 1 cup chopped mushrooms
 - 1 (28 ounce) jar pasta sauce
 - 1/2 cup Kikkoman Soy Sauce, divided
 - 2 cups ricotta cheese
 - 2 eggs, well beaten
 - 2 cups shredded mozzarella cheese
 
- Heat oven to 350 degrees F.
 - Cook noodles according to package directions. In large skillet, heat oil; add onion and mushrooms and saute until onions are translucent. Stir in pasta sauce and 1/4 cup of the soy sauce; heat through. In medium bowl, combine ricotta cheese, eggs and remaining soy sauce.
 - Spread a layer of meat sauce on the bottom of a 9- x 13-inch baking dish. Layer with noodles, cheese mixture and mozzarella cheese. Continue layering, ending with a final layer of noodles and meat sauce. Cover with foil; bake 30 minutes. Let stand 15 minutes before serving.