Blackened Fish Tacos

Name: Blackened Fish Tacos
Cook time: 20 min
Total time: 20 min
Cuisine: American
Ingredients: 2 medium navel oranges; 0.333 cup chopped white onion; 0.25 cup chopped fresh cilantro, plus more for garnish; 1 medium red Fresno chile pepper, sliced very thinly; 0.125 teaspoon salt; 2 tablespoons lime juice, divided; 1 pound skinless snapper fillets; 2 tablespoons Cajun blackened seasoning; 1 tablespoon canola oil; 1 cup shredded red cabbage; 8 (6-inch) corn tortillas, warmed