Cook the pasta according to the pack instructions then drain. Put it back in the pan and keep warm under cover.
Meanwhile, heat the oil a frying pan. Add tomatoes and cook for 2 minutes. Slice the roasted pepper & garlic, chop the chilli. Add these to the tomatoes together with the prawns. Stir for a couple of minutes, until the prawns are just turning pink.
Stir in the spinach, basil, vinegar, cover and turn off the heat after 30 seconds. Let it steam for a minute or so then stir through the pasta.
Season with salt and pepper then serve immediately.