Sicilian Sea Bass in Tomatoes with Fried Capers

Name: Sicilian Sea Bass in Tomatoes with Fried Capers
Ingredients: 3 Tbs. canola oil; 1/4 cup (2 oz./60 g) capers, drained; 3 1/2 cups (22 oz./690 g) cherry tomatoes; 1 red bell pepper, seeded and chopped; 1 small yellow onion, diced; 5 garlic cloves, thinly sliced; 1 cup (8 fl. oz./250 ml) extra-virgin olive oil, plus more for drizzling; Kosher salt and freshly ground pepper; 1 tsp. dried oregano; 4 skin-on sea bass or halibut fillets, each about 5 oz. (150 g); 8 fresh oregano sprigs; 1 lemon; Fresh basil leaves for garnish