Preheat oven to 350 degrees. Spray a 9 x 13 inch baking dish with non-stick cooking spray; set aside.

In a large bowl, combine the mozzarella, ricotta, sour cream, half and half, 1/4 cup of parmesan cheese, oregano, basil, pepper, garlic, and salt.

Once combined toss with cooked spaghetti. Pour mixture into prepared 9 x 13 pan and spread out so mixture is even in the pan. Sprinkle with remaining 1/4 cup Parmesan cheese and cover with foil.

Bake at 350 degrees for 30 minutes.

While pasta bakes, brown beef or sausage in a large skillet. Drain off any grease. Then mix in jar of marinara and heat until warm.

To serve, cut pasta into squares and top with meat sauce. Serves 12.