Roll the pastry out and line a 20cm flan dish.
Line the pastry with greaseproof paper or oven-proof clingfilm, then fill with baking beans.
Bake at 190 degree/170 degree fan for approx. 15 minutes. Remove from the oven, take out the beans and paper or clingfilm and bake for approx. 10 minutes more until light golden.
Meanwhile place the tomato halves on a baking tray, drizzle with a little oil and add to the oven for the last 10 minutes of the pastry cooking.
While the pastry is cooking whisk the eggs with the soya cream, garlic, pesto and pepper.
Once cooked, remove the pastry case from the oven along with the tomatoes.
Pour the egg mixture into the pastry case then scatter over the chorizo, gently arrange the tomatoes (cut side up), olives and sundried tomatoes.
Bake for a further 30 minutes until set and golden.
Eat either hot or cold.