Follow these straightforward steps to prepare Beef Giouvetsi:

1. Sear the Beef: Heat olive oil in a large pot over medium-high heat. Add the beef cubes, season with salt and pepper, and brown them on all sides. Remove the beef and set aside.
2. Sauté Vegetables: In the same pot, add the chopped onion and garlic. Sauté until translucent. Add diced carrots and bell peppers and cook for another 5 minutes.
3. Add Tomatoes: Stir in the diced tomatoes and tomato paste. Mix well to combine.
4. Season: Add the dried oregano, dried thyme, and return the beef to the pot. Stir everything together to coat the beef in the mixture.
5. Deglaze: If using, pour in the red wine, scraping the bottom of the pot to lift any brown bits for extra flavor.
6. Simmer: Add the beef broth, and bring the mixture to a boil. Once boiling, reduce the heat to low. Cover and let it simmer for about 1 hour, or until the beef is tender.
7. Cook Orzo: After the beef is tender, stir in the orzo pasta. Cook for an additional 10-12 minutes until the orzo is al dente and has absorbed some of the liquid.
8. Taste and Adjust: Check for seasoning, adding more salt and pepper if necessary.
9. Serve: Remove from heat and let it rest for a few minutes before serving. Garnish with fresh parsley for a colorful presentation.

These steps will guide you effortlessly through the preparation of this incredible dish!