COOKING INSTRUCTIONS:
DO-AHEAD TIP: Prepare pasta.
Preheat oven to 350 degrees.
In a large bowl, combine prepared pasta, cottage cheese, spinach, onion, 1/2 cup of Mozzarella, all of the Parmesan, salt, and pepper; blend well and set aside.
In another large bowl, combine tomato sauce, Herbes de Provence and garlic. Spoon about 1/2 cup of the tomato/herb sauce on the bottom of a lightly oiled 9- x 13-inch baking pan.
Layer about half of the veggie/cheese mixture on top of the sauce, then add more tomato herb sauce and repeat layering until all ingredients are used, ending with tomato/herb sauce on top.
Sprinkle with remaining Mozzarella and bake for 25 minutes or until hot and bubbly.