Heat about 3 tbsp of oil in a large pot over medium-low heat. Add the onions, carrots, and celery. Season with salt and pepper and cook for 7-8 minutes while stirring occasionally.
Stir in the fresh garlic, rosemary, and thyme, and cook for 20 seconds. Add the chicken, garlic powder, turmeric, Italian seasoning, chicken bouillon paste, and 8 cups of water. Increase the heat to high and bring it to a boil.
Once it comes to a boil, cover, reduce the heat to medium, and cook for 25 minutes or until the chicken reaches an internal temperature of 165 degrees F. Once the chicken is fully cooked through, remove the chicken from the pot and add the orzo. The orzo takes about 9 minutes to cook. While the orzo cooks, shred or dice the chicken and discard the bones.
Place the chicken back into the pot, add the lemon juice, season with salt and pepper and cook for an additional 2-3 minutes. Garnish with fresh parsley, if desired, and enjoy!