Thaw frozen pollack fillets. Peel off the garlic cloves and cut into slices. Rinse, clean, pat dry the cherry tomatoes and cut in half. Clean the spring onions, rinse and cut diagonally into thin rings. Cook the noodles in boiling salted water until they are firm to the bite.
Cut the lime into thin wedges. Pat the pollack fillets dry, remove any remaining bones with tweezers.
Heat 2 tablespoons of olive oil in a non-stick pan and fry the pollack fillets until golden brown for about 5 minutes, seasoning with salt and black pepper.
Drain the pasta, drain, add to the tomatoes in the wok and stir in. Carefully cut the pollack fillets into large pieces. Arrange the tomato pasta with the saithe fillet pieces on plates. Garnish with the lime wedges and the remaining spring onion rings.