In a food processor, blend your basil, oil, cashews, lime, salt, and pepper until it forms a paste. Taste and adjust if it needs more seasoning. It will be a thick paste
Boil pasta according to packet instructions, drain and set aside
Pour coconut milk into a pan and warm slowly and then add the basil pesto mixture you made earlier, as well as another good squeeze of lime and salt and pepper to taste
Now toss the pasta back into this pesto mixture, ensuring the pasta is fully coated and serve while hot!