Baked Ziti

1 . Stage

Bring a large pot of lightly salted water to a boil. Add ziti pasta, and cook until al dente, about 8 minutes; drain.

2 . Stage

Meanwhile, brown ground beef and onion in a large skillet over medium heat; stir in spaghetti sauce and simmer for 15 minutes.

3 . Stage

Preheat the oven to 350 degrees F (175 degrees C). Butter a 9x13-inch baking dish.

4 . Stage

Spread 1/2 of the ziti in the bottom of the prepared dish; top with Provolone cheese, sour cream, 1/2 of the meat sauce, remaining ziti, mozzarella cheese, and remaining meat sauce. Top with grated Parmesan cheese.

5 . Stage

Bake in the preheated oven until heated through and cheeses have melted, about 30 minutes. chibi chef