Cheesy Stuffed Shells

Name: Cheesy Stuffed Shells
Ingredients: Kosher salt; 2 tablespoons extra-virgin olive oil; 1/2 cup grated carrot; 1/2 cup grated zucchini; 1 small onion, finely chopped; 1/2 cup chopped celery; 3 cloves garlic, minced; 1 teaspoon dried basil; 1 teaspoon dried oregano; 2 tablespoons tomato paste; 1 28-ounce can crushed tomatoes; Freshly ground pepper; 1 12-ounce box jumbo pasta shells; 8 ounces silken tofu, mashed; 1 10-ounce box frozen chopped spinach, thawed and squeezed dry; 1 1/2 cups cottage cheese; 1/2 cup grated parmesan cheese; 1 1/2 cups shredded mozzarella cheese; 1 large egg, lightly beaten; 1 clove garlic, minced; Kosher salt and freshly ground pepper; Cooking spray