"This fish stew, called moqueca, is a very typical, traditional Brazilian dish that originated in the Northeast. The palm oil gives it its distinctive flavor. Serve hot with white rice or coconut rice."
Rinse sea bass under running cold water; pat dry. Place in a shallow dish and season with lime juice, garlic, and salt. Marinate for 30 minutes.
Heat olive oil in a large skillet over medium heat. Add grated onion and cook for a few seconds. Add fish and marinade to the skillet and cook for 3 to 5 minutes. Stir in palm oil and onion rings, followed by water and coconut milk. Simmer for 15 minutes. Add green bell pepper, red bell pepper, tomatoes, cilantro, and green onions; cover and cook until vegetables are soft and flavors are well combined, about 5 minutes.