Lemon Chicken Quinoa Soup with Spinach

This is a bright, lemony soup that uses rotisserie chicken to make it quick. The quinoa bulks it up so it’s filling without being heavy.

June Arthurs
March 18, 2026
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Ingredients (~6 servings)

  • 1 Tbsp olive oil
  • 1 medium onion, diced
  • 2 medium carrots, peeled and diced
  • 2 celery stalks, diced
  • 3 cloves garlic, minced or pressed
  • 1 1/2 cups uncooked quinoa
  • 6 cups reduced-sodium chicken broth
  • 4 1/2 cups water (plus more if needed)
  • 3/4 tsp Diamond Crystal kosher salt (or to taste)
  • 1/2 tsp ground black pepper (or to taste)
  • 1 bay leaf
  • 3 cups packed baby spinach leaves, roughly chopped
  • 4 cups cooked, shredded chicken
  • Juice of 3-4 lemons (or to taste)
  • Grated Parmesan or Pecorino Romano, for serving

Cook the Aromatics in a Large Pot

Heat 1 Tbsp of olive oil in a large pot or Dutch oven over medium heat.

Add 1 diced onion, 2 diced carrots, and 2 diced celery stalks.

Let cook for ~4-5 minutes until the vegetables start to soften, stirring a few times.

Add 3 cloves of minced garlic and cook for 1 more minute until fragrant.

Toast the Quinoa and Add the Liquids

Add 1 1/2 cups of dry quinoa to the pot and stir to coat with the oil and vegetables.

Let the quinoa toast for ~1-2 minutes – you’ll notice it starts to smell a bit nutty.

Add 6 cups of chicken broth, 4 1/2 cups of water, 3/4 tsp salt, 1/2 tsp black pepper, and 1 bay leaf; stir to combine.

Simmer Until the Quinoa is Fully Cooked

Bring the soup to a simmer and cook for ~10-12 minutes.

You’ll know the quinoa is done when you see the little germ ring (that squiggly tail) has separated from the kernel.

If the soup has thickened too much, add 1-2 more cups of water or broth to loosen it up.

Quinoa absorbs a lot of liquid and will continue to do so as it sits, so don’t be shy about thinning it out.

Add the Chicken, Spinach, and Lemon Juice

Stir in 4 cups of cooked, shredded chicken and 3 cups of chopped spinach.

Simmer for ~3-4 minutes until the spinach wilts completely and the chicken is warmed through.

Remove the bay leaf and stir in the juice of 3-4 lemons – start with 3 and add more if you want it brighter.

Taste and add more salt and pepper as needed.

Serve with a heavy sprinkle of grated Parmesan or Pecorino Romano on top.

Lemon Chicken Quinoa Soup with Spinach

This is a bright, lemony soup that uses rotisserie chicken to make it quick. The quinoa bulks it up so it’s filling without being heavy.
prep time15 minutes
cook time20 minutes
total time35 minutes

Ingredients

Ingredients (~6 servings)

  • 1 Tbsp olive oil
  • 1 medium onion, diced
  • 2 medium carrots, peeled and diced
  • 2 celery stalks, diced
  • 3 cloves garlic, minced or pressed
  • 1 1/2 cups uncooked quinoa
  • 6 cups reduced-sodium chicken broth
  • 4 1/2 cups water, plus more if needed
  • 3/4 tsp Diamond Crystal kosher salt, or to taste
  • 1/2 tsp ground black pepper, or to taste
  • 1 bay leaf
  • 3 cups packed baby spinach leaves, roughly chopped
  • 4 cups cooked, shredded chicken
  • Juice of 3-4 lemons, or to taste
  • Grated Parmesan or Pecorino Romano, for serving

Instructions

  • Heat olive oil in a large pot over medium heat.
  • Add diced onion, carrots, and celery; cook 4-5 minutes until softened.
  • Add minced garlic and cook 1 minute until fragrant.
  • Add dry quinoa and stir to coat; toast for 1-2 minutes until nutty-smelling.
  • Pour in chicken broth, water, salt, pepper, and bay leaf; stir to combine.
  • Bring to a simmer and cook 10-12 minutes until quinoa is tender and germ ring separates from kernel.
  • Add more water or broth if soup is too thick.
  • Stir in shredded chicken and chopped spinach; simmer 3-4 minutes until spinach wilts.
  • Remove bay leaf and add lemon juice to taste.
  • Taste and adjust salt and pepper as needed.
  • Serve with grated Parmesan or Pecorino Romano.

Notes

Quinoa continues absorbing liquid as it sits, so thin with extra broth if needed when serving.