- Preheat oven to 375°F. Lightly grease a 9×13-inch casserole dish.
- Bring a large pot of salted water to a boil. Cook rigatoni 2 minutes less than package directions for al dente. Drain and set aside.
- Meanwhile, melt butter in a large skillet or Dutch oven over medium heat. Add sliced TX1015 Sweet Onion and season lightly with salt and pepper. Reduce heat to medium-low and cook for 15–20 minutes, stirring frequently, until onions are soft and caramelized.
- Stir in thyme and Worcestershire sauce. Pour in beef broth and simmer for 3–4 minutes to combine flavors.
- Reduce heat to low and stir in heavy cream along with ½ cup Parmesan cheese. Stir until smooth and creamy.
- Add cooked rigatoni to the skillet and toss until evenly coated.
- Transfer pasta mixture to prepared casserole dish. Top with remaining ½ cup Parmesan cheese and mozzarella cheese.
- Bake uncovered for 15–20 minutes, or until hot and bubbly with a lightly golden top.
- Garnish with fresh parsley before serving.
Ingredients
