Preheat your oven to 350°F (175°C).

In a large pot, boil salted water and cook the spaghetti according to package instructions until al dente.

In a large skillet over medium heat, brown the ground beef or sausage until fully cooked.

Add diced onion and minced garlic to the skillet with the meat, cooking until the onion is translucent.

Stir in the spaghetti sauce, Italian seasoning, salt, and pepper to the meat mixture and let it simmer for about 5 minutes.

In a mixing bowl, combine cottage cheese, sour cream, and half of the mozzarella cheese.

In a greased baking dish, layer half of the cooked spaghetti, followed by the meat sauce, then the cheesy mixture, and top with the remaining spaghetti.

Sprinkle the remaining mozzarella and Parmesan cheese on top.

Cover with aluminum foil and bake for 30 minutes.

Remove the foil and bake for an additional 10 minutes, until the cheese is bubbly and golden.