Ingredients
Method
- Preheat oven to 375°F (190°C). Brown the sausage in olive oil over medium high heat for about 6 minutes, breaking it up, until no longer pink.
- Add onion and cook 3 minutes. Add garlic and cook 30 seconds. Stir in tomato paste and oregano, cook 1 minute. Add crushed tomatoes, season with salt and pepper, and simmer 10 minutes.
- Mix ricotta, egg, Parmesan, and pepper until smooth.
- Cook penne 2 minutes less than package directions. Drain, toss with the sauce, then layer half the pasta, all the ricotta mixture, and the remaining pasta in a 9x13 inch dish. Top with mozzarella.
- Bake uncovered 20 minutes, then broil 2 to 3 minutes until cheese is golden and blistered. Let rest 5 minutes, scatter basil on top, and serve.
Notes
Letting the casserole rest for 5 minutes after baking makes it easier to serve clean squares. If your mozzarella is browning too fast under the broiler, move the dish to a lower rack. The pasta will continue to soak up sauce as it sits, so leftovers may thicken overnight.
