Combine first 3 ingredients in a food processor; process until smooth.
Heat a large nonstick skillet coated with cooking spray over medium-high heat. Add zucchini and onion; sauté 5 minutes or until tender. Stir in sauce; remove from heat.
Spread 1/4 cup zucchini mixture in bottom of a 13 x 9-inch baking dish coated with cooking spray. Arrange 3 noodles over zucchini mixture; top with one-third cottage cheese mixture, one-third zucchini mixture, and one-third mozzarella. Repeat procedure with the remaining noodles, cottage cheese mixture, zucchini mixture, and mozzarella.
Cover and bake at 350° for 45 minutes. Uncover and bake an additional 15 minutes or until lasagna is thoroughly heated.