Boil water for the pasta. Cook them according to the instructions on the package.
Wash, then dice the zucchini.
Heat a pan with some olive oil. When hot, sauté the zucchini over high heat for several minutes, until golden brown. Then reduce to medium heat and cook for 10 to 12 more minutes.
In a small blender or food processor, blend the avocados with the mint, the water and the lemon juice. Season with salt and pepper.
Crush the hazelnuts with a large knife.
When the pasta is cooked, drain it and rinse it in cold water. Add the zucchini, the avocado sauce, the crushed hazelnuts to a large bowl and combine. Enjoy cold.
Notes
The pasta salad can be kept for 1 day in the fridge.