Kids rating: 5 stars
My rating: 4 stars
Pre-heat oven to 375°F. Whisk cottage cheese, eggs, and 1 cup Parmesan together in medium bowl; set aside. Bring 4 quarts of water to boil in large pot over high heat. Stir in 1 tablespoon salt and add pasta; cook, stirring occasionally, until pasta begins to soften but is not yet cooked through, about 7 minutes. Drain pasta and leave in colander (do not wash pot).
Add 1 cup cream heavy cream to pot and whisk in cornstarch over medium heat. Bring to simmer and cook until thickened, 3 to 4 minutes. Remove pot from heat and add cottage cheese mixture, 1 cup marinara sauce, basil, sausage, and ¾ cup mozzarella, then stir to combine. Add pasta and stir to coat thoroughly with sauce. Season to taste with salt and pepper.
Transfer pasta mixture to 13- by 9-inch baking dish and spread remaining marinara sauce, mixed with 1/4 cup cream, evenly over pasta. Sprinkle remaining ¾ cup mozzarella and remaining ½ cup Parmesan over top. Cover baking dish tightly with foil and bake for 25 minutes.
Remove foil and increase heat to broil. Broil for 5 minutes until golden and bubbly. Cool for 10-15 minutes. Garnish with fresh basil and serve.