In a medium bowl stir together 1 tablespoon of the olive oil, lime juice, salt, and pepper. Add fish cubes; toss to coat. Set aside.
In a 3-quart saucepan heat remaining oil over medium-high heat. Add the onion, sweet pepper, garlic, and jalapeno. Cook and stir 4 minutes until onion is tender but not brown. Stir in undrained tomatoes and coconut milk. Bring to boiling; reduce heat. Simmer, uncovered, 10 minutes, stirring occasionally. Stir in shrimp, fish mixture, and 1/2 cup cilantro. Return to boiling; reduce heat. Simmer, uncovered, for 5 minutes or until fish just flakes easily with a fork and shrimp turn opaque, stirring occasionally. Serve over hot cooked rice. Sprinkle with remaining cilantro. Pass hot pepper sauce, if desired. Makes 4 to 6 servings.