Add butter and olive oil to a large soup pot and pre-heat over medium high. Sauté the onion, celery and carrots, until tender (approx. 2-3 minutes).
Add in the garlic and sauté until fragrant, about 30 seconds.
Add the flour and cook for approx. 1 minute.
Slowly pour in the chicken broth and half and half, stirring consistently, until the broth starts to thicken.
Turn down the heat to medium and stir in the thyme, nutmeg, cooked chicken and gnocchi. Simmer for about 5 minutes or until gnocchi is cooked and soup is thickened. (For thinner soup, add in an extra cup of chicken broth).
Add the spinach and cook until the spinach is wilted (approx. 2-3 minutes). Salt and pepper, to taste, and serve immediately.
Slow Cooker Version:
Turn the slow cooker to high, or use a skillet over medium high heat, and add the butter and olive oil. Once the butter is melted, sauté the onion, celery, and carrots until softened.
Add in the garlic and sauté until fragrant, about 30 seconds.
Add the flour and cook for approx. 1 minute.
Transfer the vegetable mixture to your slow cooker (if sautéed on the stove top). Add in the cooked chicken, thyme, nutmeg and chicken broth and stir to combine.
Cook on low for 3-4 hours, adding in the gnocchi for the last hour of cooking.
Right before serving, add the half and half and spinach and stir to combine. The spinach should wilt in approx. 2-3 minutes. Salt and pepper, to taste, and serve immediately.
Instant Pot Version:
Set the Instant Pot to the sauté setting and add the butter and olive oil. Sauté the onion, celery and carrots until tender (approx. 2-3 minutes).
Add in the garlic and sauté until fragrant, about 30 seconds.
Add the flour and cook for approx. 1 minute.
Add in the thyme, nutmeg and chicken broth giving it a quick stir.
Set Instant Pot to "soup" setting and set timer for 15 minutes.
Once done cooking, naturally release for 5 minutes and then quick release.
Click "off" and then click the "sauté" button. Add the chicken, gnocchi, Half & Half and spinach to the soup. (For thinner soup, add in an extra cup of chicken broth).
Sauté for about 5 minutes, or until gnocchi is cooked and soup is thickened. (For thinner soup, add in an extra cup of chicken broth).
Notes
Note 1 - Start with two cup and add an extra cup if you prefer a "thinner" final product. Make sure you use low sodium stock or broth as to control the sodium content.Note 2 - This is a good recipe to use leftover cooked chicken or a store bought rotisserie chicken.Note 3 - If the gnocchi is extra large, cut them in half.Note 4- the soup will continue to get thicker as it sits.