In a large stockpot, heat olive oil over medium-high heat. Add chopped onions and cook 3-5 minutes, until onions are translucent. Add the sweet potatoes, ginger, turmeric, and a healthy pinch of salt and freshly ground pepper.
Add coconut milk and chicken broth. Bring to a boil then reduce to a simmer and partially cover pot with a lid, allowing some steam to escape. Cook for 10-15 minutes, until sweet potatoes are tender but not falling apart.
Add the Ramen noodles and cook 3-5 minutes, until noodles are cooked through.
Add the spinach, rotisserie chicken, and lemon juice and cook until spinach is wilted. Divide soup between individual bowls and serve warm. Bon Appetite!