Easy Slow Cooker Chicken Gnocchi Soup for Cozy Dinners

Ingredients

• 1 1/2 lb (680 g) boneless skinless chicken breasts or thighs, thawed
• 2 medium carrots, peeled and diced
• 2 celery ribs, diced
• 1 small yellow onion, finely diced
• 3 cloves garlic, minced
• 1 teaspoon dried Italian seasoning
• 1/2 teaspoon dried thyme
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon black pepper
• 5 cups (1.2 L) low-sodium chicken broth
• 1 cup (240 ml) heavy cream
• 1 1/2 tablespoons cornstarch
• 16 oz (450 g) shelf-stable potato gnocchi
• 2 cups (60 g) fresh baby spinach, roughly chopped
• 1/2 cup (45 g) grated Parmesan cheese, plus more for serving
• 1 tablespoon lemon juice, optional