Stir together mango, bell pepper, lime juice, cilantro, onions and jalapeno in a medium bowl; set aside. Place cod on 2 large sheets of parchment paper. Stir together dry seasonings in a small bowl and sprinkle over cod. Bring edges of parchment paper together and fold twice. Fold ends under to enclose fish. Place packets on a baking sheet and bake for 15 to 18 minutes.
Open packets carefully to let steam escape. Place equal amounts of cod in each tortilla and top with cabbage, cheese and mango salsa.