Place the chicken, butternut squash, onion, bell peppers, carrots, and garlic in the slow cooker.
Sprinkle the curry powder and turmeric over the ingredients.
Pour in the light coconut milk and chicken broth. Stir everything to combine.
Cover and cook on low for 6 to 7 hours or on high for 3 to 4 hours until the chicken is cooked through and the vegetables are tender.
Stir in the spinach during the last 10 minutes of cooking so it wilts but stays bright.
Season with salt and black pepper. Serve with fresh cilantro and lime wedges.