Dice the chicken breast into bite-sized pieces and season with sea salt and black pepper.
Heat olive oil in a large pot over medium heat and sauté the chicken until golden and cooked through.
Remove the chicken from the pot and set aside, then add the diced onion, carrots, and celery to the same pot.
Sauté the vegetables until softened, then stir in the minced garlic and dried thyme for one minute.
Pour in the chicken bone broth and bring to a gentle boil, then reduce heat to a simmer.
Add the potato gnocchi to the pot and cook for 3 to 5 minutes until they are tender and float to the surface.
Stir in the heavy cream and fresh spinach, cooking just until the leaves have wilted into the soup.
Return the cooked chicken to the pot, stir well to combine, and serve immediately.