Bring water to a boil in a medium sized pot. Salt the water and add in your pasta, reduce heat to medium, and cook until Al Dente, about 8-10 minutes.
While the pasta is cooking, make the sauce by placing the avocado, garlic, lime juice, cilantro, salt and pepper into a food processor or blender. Process until smooth and creamy.
When pasta is done cooking, drain and place pasta into a large bowl. Add the sauce to the pasta and toss until pasta is well coated. Season with additional salt and pepper, if desired. Serve immediately.
Note: This pasta dish is best eaten the day it is made.