Murray cod fish burger

Name: Murray cod fish burger
Ingredients: 4 x 150g Murray cod fillets, skinless; Sea-salt flakes and freshly ground black pepper, to season; ¼ cup semolina; 1¼ cups plain flour; ¼ cup rice flour; 325ml sparkling wine; ¼ bunch chives, very finely sliced; Vegetable oil, for deep-frying; 2 cups very finely sliced cabbage; ½ bunch flat-leaf parsley, finely chopped, plus extra leaves to serve; Juice of ½ lemon; 4 brioche buns; 4 slices American cheese; Tartare sauce, to serve; Lemon wedges, to serve