Slow Cooker Chicken Tortellini Soup

Ingredients

• 1 teaspoon garlic powder
• 1½ cups spinach
• 1 teaspoon onion powder
• 1 cup walnuts
• 8 oz dried cheese tortellini pasta, for later
• ½ cup grated parmesan
• 1 pound boneless skinless chicken thighs
• 1 teaspoon dried thyme
• ¼ cup olive oil
• 1 cup heavy cream, for later
• 8 oz sliced baby portobello mushrooms
• 3 cups chicken broth