Preheat oven to 375°F. Spray a 9x13-inch baking dish with cooking spray.
Bring 4 quarts of water to a boil in a large pot over high heat. Season the water with 1 tablespoon of salt and add the pasta. Cook, stirring occasionally, just until barely al dente, according to package directions, usually about 5 to 7 minutes. Drain and set aside.
In a medium bowl, combine the cottage cheese, eggs, grated mozzarella cheese, and 1 cup of the Parmesan cheese. Stir to combine. Set aside.
In a large skillet or the same pot used to cook the pasta, heat 1 tablespoon of olive oil over medium-high heat. Add the sausage and garlic. Cook, breaking up the meat, until browned, about 4-5 minutes. Drain excess fat.
Add the marinara sauce, tomato sauce, heavy cream, Italian seasoning, Kosher salt, and black pepper to the browned sausage. Stir to combine.
Add the cooked pasta and cottage cheese mixture to the sausage, stirring until combined. Transfer the pasta and meat sauce to the prepared baking dish. Sprinkle with the remaining Parmesan cheese and torn fresh mozzarella.
Cover with aluminum foil and bake for 25 minutes. Remove foil and bake for another 20-25 minutes until lightly browned and bubbling.
Remove the baked ziti from the oven and let it sit for 10 minutes. Sprinkle with fresh basil before serving.