Season the fish with salt and pepper and drizzle with 2 tablespoons of the lime juice. Set aside.

In an ovenproof casserole, heat the olive oil over medium heat. Add the onions and sauté until wilted, about 5 minutes. Add the red and green peppers and garlic and sauté until wilted, about 8 minutes. Add the tomatoes and squash and bring to a simmer. Stir in the coconut milk and dende oil and bring to a simmer. Add the plantains and cilantro, season with salt and pepper, and bury the fish in the sauce. Bake for 20 minutes until the fish flakes easily. Stir in the remaining 1 tablespoon lime juice and sprinkle with the scallions. Serve with rice and hot pepper sauce.