4 tablespoons extra virgin olive oil
1 large sweet onion, diced
2 celery ribs, diced
1 teaspoon salt
½ teaspoon black pepper
4 large garlic cloves, minced
½ teaspoon dried thyme
¼ teaspoon red pepper flakes
½ cup dry white wine
1 28-oz can whole cherry tomatoes
1 cup seafood broth
2 tablespoons capers
2 lb skinless sea bass fillet, about 1 ½-inch thick, cut into 4 pieces
8 large fresh or frozen medium shrimp, peeled and deveined
12 large sea scallops
1 teaspoon dried oregano, crushed
½ cup chopped fresh parsley leaves stems removed
Heat the olive oil in a large deep skillet with a cover over medium heat. Add onions, celery/ Cook, stirring regularly until softened (about 4 minutes). Add thyme, red pepper flakes, and garlic and cook briefly until fragrant (about 30 more seconds).
Stir in the white wine. Bring to a simmer, and cook for 2 minutes. Add the tomatoes, broth, salt, pepper, and capers. Cook for 20 minutes over medium heat until flavors combine.
Pat the fish dry and season lightly with salt and pepper. Insert the fish pieces into the cooking liquid, and give everything a gentle stir. Bring to a simmer and cook for 5 minutes. Turn the heat off and cover the skillet. Let sit off the heat for another 5 minutes so that the fish will finish cooking. Fish should be flaky when gently pulled apart with a paring knife. Finally, stir in the chopped parsley.
Ladle the hot fish stew into serving bowls.