- 2 tablespoons olive oil
- 1/2 white onion, diced
- 3 cloves garlic, minced
- 1 cup cherry tomatoes, halved
- 1/3 cup pitted, sliced green olives (such as Castelvetrano)
- 1 jalapeno pepper, seeded and chopped
- 1 tablespoon capers
- 1 tablespoon caper juice
- 2 teaspoons chopped fresh oregano
- 2 teaspoons olive oil
- 2 (7 ounce) red snapper fillets, cut in half
- salt and pepper to taste
- 1/2 teaspoon cayenne pepper, or more to taste
- 2 limes, juiced
- Preheat oven to 425 degrees F (220 degrees C).
- Heat olive oil in a skillet over medium heat. Stir in onion; cook and stir until onions begin to turn translucent, 6 to 7 minutes. Add garlic; cook and stir until fragrant, 30 seconds. Stir in tomatoes, olives, jalapeno pepper, capers, and caper juice. Cook and stir until jalapeno pepper softens and tomatoes begin to collapse, about 3 minutes. Remove from heat; stir in oregano.
- Drizzle 1 teaspoon olive oil into a small baking dish. Sprinkle in 1 tablespoon of the tomato-olive mixture. Top with 1 snapper fillet, salt, black pepper, and cayenne pepper. Top with more filling and juice from 1 lime. Repeat with remaining snapper fillet, seasoning, and lime juice in a second baking dish.
- Bake in the preheated oven until fish is flaky and no longer translucent, 15 to 20 minutes.