Preheat oven to 350°F code 9 by 13 inch baking dish what 3 quart casserole with cooking spray spray

In a large skillet over medium heat brown ground beef with 1/2 teaspoon of salt until no pink remains; drain off excess liquid stir in spaghetti sauce and set aside

Prepare spaghetti according to package directions; drain and place in a large bowl. Add ricotta cheese, sour cream, Italian seasoning, garlic powder, and remaining salt. Stir until cheese is melted and spaghetti is evenly coated.

Spread a cup of meat sauce in the bottom of prepared baking dish. Place spaghetti on top of sauce and top with remaining meat sauce. Sprinkle Parmesan cheese on top. Cover with aluminum foil.

Bake 45 minutes. Remove foil and bake 5 to 10 additional minutes, or until heated through.