Cook the pasta in a large pan of boiling, well-salted water (1 teaspoon per 600ml) for 7 – 8 minutes or until al dente.
Meanwhile, put the tomatoes, crab meat, parsley, lemon juice, olive oil, chilli flakes and garlic into another pan and warm through over a gentle heat.
Drain the pasta, return to the pan with the sauce and briefly toss together. Season to taste.
Divide between 4 warmed plates and serve immediately.
