Mist a large deep frying pan with cooking spray and set over a medium heat. Add the red curry paste and cook, stirring, for just under 1 minute, or until fragrant.
Add the coconut milk and 200ml cold water, and stir to combine. Bring to the boil, then reduce to a simmer. Add the Quorn and aubergine and cook for 10 minutes, then stir in the broccoli and mushrooms. Cover and cook for another 3-4 minutes, or until the broccoli is just tender.
Stir the soy sauce, lime juice and sugar into the curry, and stir until the sugar is dissolved.
Serve the Thai red curry with the coriander and lime wedges on the side.