Heat-up the grill. Once the grill gets hot, grill one side of the squid for 3 minutes. The squid will curl-up, try to straighten the other side (if possible) and grill for 1 to 2 minutes. Set aside.
Arrange the coconut cream, ginger, onion, garlic, green chillies, squid, ground black pepper, and fish sauce in a slow cooker. Set the slow cooker to high, cover and slow cook the squid for 8 hours.
Add the spinach. Cook for 10 to 15 minutes.
Transfer to a serving bowl. Serve. Share and enjoy!