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Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish with olive oil or cooking spray.

Bring a large pot of salted water to a rolling boil. Add the penne pasta and cook according to package directions until al dente, about 8-10 minutes. Drain the pasta well and set aside.

While the pasta cooks, prepare the sauce. Heat 2 tablespoons of olive oil in a large saucepan or Dutch oven over medium heat. Add the diced yellow onion and cook until softened and translucent, about 5-7 minutes.

Add the minced garlic and red pepper flakes (if using) to the saucepan and cook for another 1 minute until fragrant, being careful not to burn the garlic.

Stir in the crushed tomatoes, diced tomatoes (with their liquid), tomato paste, dried oregano, granulated sugar (if using), salt, and black pepper. Bring the sauce to a gentle simmer, then reduce heat to low, cover, and let it cook for 15-20 minutes, stirring occasionally, to allow the flavors to meld.

Remove the sauce from the heat and stir in the chopped fresh basil. Taste and adjust seasonings as needed.

Add the cooked and drained pasta to the sauce, tossing gently until all the pasta is evenly coated.

Pour the pasta mixture into the prepared baking dish. Sprinkle the shredded mozzarella cheese evenly over the top, followed by the grated Parmesan cheese.

Bake for 20-25 minutes, or until the cheese is melted, bubbly, and lightly golden brown. If desired, you can broil for the last 1-2 minutes for extra browning, watching carefully to prevent burning.

Remove from the oven and let it rest for 5-10 minutes before serving. Garnish with extra fresh basil, if desired.


Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish with olive oil or cooking spray.

Bring a large pot of salted water to a rolling boil. Add the penne pasta and cook according to package directions until al dente, about 8-10 minutes. Drain the pasta well and set aside.

While the pasta cooks, prepare the sauce. Heat 2 tablespoons of olive oil in a large saucepan or Dutch oven over medium heat. Add the diced yellow onion and cook until softened and translucent, about 5-7 minutes.

Add the minced garlic and red pepper flakes (if using) to the saucepan and cook for another 1 minute until fragrant, being careful not to burn the garlic.

Stir in the crushed tomatoes, diced tomatoes (with their liquid), tomato paste, dried oregano, granulated sugar (if using), salt, and black pepper. Bring the sauce to a gentle simmer, then reduce heat to low, cover, and let it cook for 15-20 minutes, stirring occasionally, to allow the flavors to meld.

Remove the sauce from the heat and stir in the chopped fresh basil. Taste and adjust seasonings as needed.

Add the cooked and drained pasta to the sauce, tossing gently until all the pasta is evenly coated.

Pour the pasta mixture into the prepared baking dish. Sprinkle the shredded mozzarella cheese evenly over the top, followed by the grated Parmesan cheese.

Bake for 20-25 minutes, or until the cheese is melted, bubbly, and lightly golden brown. If desired, you can broil for the last 1-2 minutes for extra browning, watching carefully to prevent burning.

Remove from the oven and let it rest for 5-10 minutes before serving. Garnish with extra fresh basil, if desired.
