Stir in the crab and heat through, then stir in the red pepper pesto. If you want the sauce to be a little more liquid, add the water from the pasta, 1 Tbsp at a time.
Check for seasoning and add salt and pepper as necessary. If it is not hot enough for your taste, add a pinch of chilli or cayenne pepper powder and mix well.
Drain the pasta and divide into 2 bowls. Top each bowl with half the crab sauce and a handful of rocket leaves and serve.
Recipe by Cooksister | Food, Travel, Photography at https://www.cooksister.com/2013/01/crab-chilli-pasta.html