Gluten Free Soup Recipes: Lemon Chicken Spinach Soup

• The broth gets body from softened onion, celery, and carrot rather than starch. Those vegetables remain in small pieces, giving each spoonful texture while keeping the liquid clear and easy to serve.
• Chicken thighs simmer in the broth, then get shredded and returned to the pot. That order seasons the meat while avoiding a separate skillet, extra pan, or last-minute assembly.
• Lemon zest enters with the garlic, while juice is stirred in after cooking. Splitting the lemon this way gives the soup a rounded citrus flavor instead of a sharply acidic finish.

• 1 tablespoon olive oil (14 g)
• 1 medium yellow onion, finely diced (150 g)
• 2 celery stalks, finely diced (100 g)
• 2 medium carrots, finely diced (170 g)
• 1 teaspoon kosher salt (6 g)
• 3 garlic cloves, minced (9 g)
• 1 lemon, zested and juiced (120 g)
• 1 teaspoon dried oregano (1 g)
• 1/2 teaspoon black pepper (1 g)
• 4 cups gluten-free chicken broth (960 g)
• 1 1/2 pounds boneless skinless chicken thighs (680 g)
• 4 packed cups baby spinach (120 g)

Ingredient notes

• Boneless skinless chicken thighs bring richness and tolerate the simmer without turning stringy. Trim obvious excess fat, but leave pieces whole initially; whole pieces are easier to remove, shred, and return evenly to the pot.
• Use gluten-free chicken broth because it carries most of the seasoning here. A lower-sodium option gives room to adjust salt after lemon goes in, when acidity changes how the soup tastes.
• Onion, celery, and carrot form the vegetable base and should be cut to similar small pieces for an even simmer. Carrot adds a little sweetness and color; omit it for lower carbohydrates, then add extra celery for volume.
• Choose a fresh lemon rather than bottled juice for both zest and juice. Zest goes in early with garlic, while juice waits until the end so its flavor remains clear instead of tasting cooked away.
• Baby spinach wilts quickly and keeps the final pot green without a long cooking window. Use chopped mature spinach if needed, but remove tough stems first and give it an extra minute before checking the leaves are tender.

1. 1Build the base

   Heat olive oil in a Dutch oven over medium heat. Add onion, celery, carrot, and salt. Cook for 7 to 8 minutes, stirring often, until the onion is translucent and the vegetables are softened. Add garlic, lemon zest, oregano, and pepper; stir until fragrant.

   

2. 2Add broth and chicken

   Pour in the chicken broth and use a spoon to loosen any vegetables stuck to the bottom. Add the whole chicken thighs and bring the pot to a gentle boil. Reduce the heat until the broth maintains a steady, quiet simmer.

3. 3Simmer gently

   Cover the pot partially and simmer for 18 to 22 minutes. Turn the thighs once halfway through so they cook evenly. Keep the liquid below a hard boil; aggressive bubbling can make the chicken tighten and break the vegetables apart too much.

4. 4Shred the chicken

   Move the thighs to a bowl with tongs and let them sit for several minutes. Shred with two forks into bite-size pieces, discarding any connective bits. Check that the thickest chicken pieces reach 165°F before returning the meat to the broth.

   

5. 5Finish the greens

   Stir the shredded chicken back into the pot, followed by spinach. Cook for 1 to 2 minutes, just until the leaves wilt and turn deep green. Turn off the heat, then stir in lemon juice so the soup keeps its fresh citrus edge.

6. 6Season and portion

   Taste the broth after the lemon is mixed in, then add more salt or pepper if needed. Let the pot stand for 5 minutes before ladling. This brief rest settles the vegetables and gives the chicken time to take on the final seasoning.

• Cut the celery and carrot smaller than the chicken pieces. Small vegetables soften within the chicken simmer time and make the finished soup easier to eat with a spoon.
• Do not add the spinach with the broth. It needs only a minute or two, and adding it late preserves its color and prevents limp, olive-toned leaves.
• Use a thermometer in the thickest section of a thigh before shredding. If it is below 165°F, return it to the simmering broth and check again after a few minutes.
• Taste only after adding lemon juice. The acid brightens the broth and can change how much salt the pot needs.
• For a clearer broth, skim any foam that gathers during the first several minutes of simmering. This is optional, but it keeps the surface neater when ladling.

Ladle the soup into wide bowls so the chicken, vegetables, and greens stay evenly distributed. A side salad with cucumber, radish, and olive oil keeps the meal light while adding crunch. For diners wanting more substance, offer cooked rice separately rather than adding it to the pot. Grated Parmesan works if dairy fits the meal, while chopped parsley and extra lemon wedges keep the original flavor direction intact.