Cook noodles in boiling unsalted water for 8 to 10 minutes or until tender; drain and set aside.
Cook spinach according to package directions and drain well.
In a saucepan cook mushrooms, carrot and onion in oil until tender. Stir in tomato sauce, tomato paste, olives and oregano.
In a greased 13x9-inch baking dish, layer half the noodles, cottage cheese, spinach, Jack cheese and sauce mixture; repeat the layers, reserving (about 1/2 cup cheese for the top. Sprinkle with Parmesan cheese. Bake at 375° F for 30 minutes. Let stand for 10 minutes before serving. Freezes well.
Servings: