Prepare the Beef Rolls:

1. Season the Beef: Lay out the beef slices and season both sides with salt and pepper.
2. Make the Filling: In a bowl, combine the breadcrumbs, grated Parmesan cheese, minced garlic, chopped parsley, oregano, and a pinch of salt and pepper. Mix well.
3. Fill the Beef Rolls: Place a generous spoonful of the breadcrumb mixture in the center of each beef slice. Roll the beef tightly, securing it with toothpicks or kitchen twine.
4. Brown the Beef Rolls: Heat 1/4 cup of olive oil in a large skillet over medium-high heat. Brown the beef rolls on all sides until golden brown, about 5-7 minutes. Remove the beef from the skillet and set aside.

Prepare the Tomato Sauce:

5. Sauté the Aromatics: In the same skillet, add 1 tablespoon of olive oil and sauté the chopped onion and minced garlic over medium heat until fragrant, about 2-3 minutes.
6. Add the Tomatoes: Stir in the crushed tomatoes, dried basil, dried oregano, salt, and pepper. Bring to a simmer and let the sauce cook for 10 minutes, stirring occasionally.
7. Simmer the Beef in the Sauce: Return the browned beef rolls to the skillet, nestling them into the sauce. Cover and simmer on low heat for 2 hours, turning the beef rolls occasionally to ensure even cooking.

Serve:

8. Serve the Beef Braciole: Once the beef is tender and the sauce has thickened, remove the toothpicks or twine from the rolls. Serve the beef braciole with the sauce poured over the top.
9. Garnish and Enjoy: Optionally, garnish with fresh basil leaves for added color and flavor.