Instructions:
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Cook the Spaghetti:
Boil a large pot of salted water. Add the spaghetti and cook according to package instructions until al dente. Drain the pasta and set aside. -
Prepare the Sauce:
Heat olive oil in a large skillet over medium heat. Add the chopped onion and cook until softened. Add the minced garlic and cook for another 1 minute.
Add the ground beef to the skillet, breaking it apart with a spoon, and cook until browned. Drain any excess fat. -
Make the Tomato Sauce:
Stir in the diced tomatoes, tomato paste, sugar, salt, pepper, oregano, and basil. Let the mixture simmer for about 10 minutes, stirring occasionally, to allow the flavors to meld together. -
Combine Pasta and Sauce:
In a large mixing bowl, combine the cooked spaghetti with the meat sauce. Stir well to coat the pasta evenly with the sauce. -
Assemble the Baked Spaghetti:
Preheat your oven to 375°F (190°C). Transfer the pasta and sauce mixture to a greased 9×13-inch baking dish. Sprinkle grated Parmesan cheese on top, followed by the shredded mozzarella cheese. -
Bake:
Cover the dish with aluminum foil and bake for 20 minutes. Then, remove the foil and bake for an additional 10 minutes, or until the cheese is melted and bubbly. -
Serve:
Let the baked spaghetti cool for a few minutes before serving. Enjoy your delicious homemade Baked Spaghetti!