Preheat your oven to 350°F (175°C).
Cook spaghetti according to package instructions until al dente.
In a skillet, brown the ground beef over medium heat until fully cooked.
Drain excess fat and mix in the marinara sauce.
In a bowl, combine cottage cheese, ricotta, and half of the mozzarella.
Season the cheese mixture with salt, pepper, and parsley.
In a baking dish, layer half of the spaghetti, followed by half of the meat sauce.
Spread the cheese mixture over the meat sauce.
Add the remaining spaghetti and top with the rest of the meat sauce.
Sprinkle with remaining mozzarella and Parmesan cheese.
Bake for 30-35 minutes until cheese is bubbly and golden.