Season the chicken breasts with salt and pepper.
In a large pot, heat a drizzle of olive oil over medium-high heat.
Sear the chicken on both sides until golden brown. Remove and set aside.
In the same pot, add more oil if needed, then sauté the onion, carrots, and celery until they start to soften.
Add the minced garlic and cook for another 1-2 minutes.
Pour in the chicken broth and add the bay leaf, dried thyme, and lemon zest.
Bring the mixture to a gentle simmer.
Stir in the orzo and let it simmer until tender, about 10-12 minutes.
While the orzo cooks, shred the seared chicken into bite-sized pieces.
Once the orzo is cooked, add the shredded chicken back to the pot.
Pour in the fresh lemon juice and give it a good stir.
Let the soup simmer for another 5 minutes to allow the flavors to meld.
Taste and adjust the seasoning with more salt, pepper, or lemon juice if needed.
Remove the bay leaf.
Ladle the soup into bowls, garnish with fresh parsley, and serve.
Enjoy the delightful combination of flavors and textures in every spoonful of this Lemon Chicken Orzo Soup.