# What You'll Need:
→ Pasta
01 - 1 lb ziti or penne pasta
→ Sauce
02 - 2 tablespoons olive oil
03 - 1 medium onion, finely chopped
04 - 3 garlic cloves, minced
05 - 28 oz canned crushed tomatoes
06 - 2 tablespoons tomato paste
07 - 1 teaspoon dried oregano
08 - 1 teaspoon dried basil
09 - 1/2 teaspoon red pepper flakes (optional)
10 - 1 teaspoon sugar
11 - Salt and black pepper, to taste
→ Cheese Mixture
12 - 15 oz ricotta cheese
13 - 1 large egg
14 - 1/2 cup grated Parmesan cheese
15 - 2 tablespoons fresh parsley, chopped (or 1 tablespoon dried)
→ Assembly
16 - 2 1/2 cups shredded mozzarella cheese
17 - Additional grated Parmesan, for topping
# How To Make:
01 - Heat the oven to 375°F. Grease a 9x13 inch baking dish.
02 - Boil salted water in a large pot and cook pasta until just al dente, about 2 minutes less than package instructions. Drain and set aside.
03 - Heat olive oil in a saucepan over medium heat. Sauté onion until soft, approximately 4 minutes, then add garlic and cook for 1 minute.
04 - Add crushed tomatoes, tomato paste, oregano, basil, red pepper flakes (if using), sugar, salt, and black pepper. Simmer uncovered for 10 to 15 minutes until thickened.
05 - Combine ricotta, egg, Parmesan, and parsley in a bowl. Season with salt and pepper and mix until smooth.
06 - In a large bowl, toss the drained pasta with half of the prepared tomato sauce.
07 - Spread half the pasta mixture into the baking dish. Dollop and spread half the ricotta mixture over the pasta, then sprinkle with half the mozzarella.
08 - Layer the remaining pasta, ricotta mixture, and mozzarella. Pour the remaining sauce evenly over the top and finish with extra grated Parmesan.
09 - Cover the dish with foil and bake for 20 minutes.
10 - Remove foil and continue baking for an additional 10 to 15 minutes until golden and bubbling.
11 - Allow the casserole to rest for 10 minutes before serving.