Cook the pasta as directed on the package.Meanwhile, puree the avocado, jalapeno, cilantro and lime juice in a food processor or blender and set aside.Melt the butter in pan over medium heat, add the garlic and cook until fragrant, about a minute.
Add the cream, goat cheese and parmesan, simmer until the cheese has melted, mix in the avocado mixture and heat to warm.
Remove from heat, season with salt and pepper and serve hot over the pasta garnished with more goat cheese, avocado and cilantro as desired.