Bring water for pasta to a boil.
In a food processor, combine basil, garlic, cashews, salt, pepper, lemon pepper. Gradually stream in olive oil until pesto forms.
Add avocado and juice of half of a lemon into the food processor and blend until smooth.
Cook pasta according to directions. Drain, but reserve 1/4 C. pasta water.
In a medium bowl, combine water, pasta and pesto, stirring until pasta is fully coated.
Serve immediately and #enJOY!