Gather all your ingredients and prep your vegetables by dicing carrots, celery, and onion. Shred your cooked chicken if not already shredded, and have your herbs and lemon ready.
Heat the olive oil in a large heavy-bottomed pot over medium heat until shimmering and fragrant.
Add the diced onion, carrots, and celery to the pot. Sauté for about 5 minutes, stirring occasionally, until the vegetables are tender and the onion is translucent, filling the kitchen with a savory aroma.
Pour in the chicken broth and bring it to a gentle simmer, avoiding a full boil to keep the flavors bright and clear.
Add the shredded chicken and dried thyme to the simmering broth. Stir well and cook for another 10 minutes, allowing the flavors to meld and the chicken to heat through.
Taste the broth and season with salt and pepper gradually, adjusting to your preference for a balanced flavor.
Stir in the lemon zest and freshly squeezed lemon juice, giving the soup a bright, zesty lift that awakens the palate.
Chop the fresh parsley and add half to the soup, stirring in to release their vibrant aroma.
Let the soup simmer for another 2-3 minutes to incorporate the herbs and lemon, then taste again and adjust seasoning if needed.
Serve the soup hot, garnished with the remaining chopped parsley for a fresh, herbal finish. Enjoy the bright, comforting bowl that’s perfect for any day.