Reduce the oven temperature to 190°C (375°F). Evenly arrange the salmon, cherry tomatoes, and asparagus in the pastry case. In a jug or bowl, whisk together the eggs, milk, double cream, salt, pepper, coriander, and thyme until smooth. Gently pour the egg mixture over the filling.
Bake and serve.
Bake the quiche for 35–40 minutes, or until the filling is set and the top is golden. Allow to cool slightly before slicing. Serve warm or at room temperature