Dice the avodadoes into thumb sized chunks, Somero can be smaller so they will squash.
Boil the pasta on well salted water and add good splash of olive oil to cooking water.
Finely chop the garlic and chili and combine them in a bowl with the avocadoes.
Half the limes and squeeze the juice to same bowl with the other ingredients. Take the basil leaves and chop them a bit and combine with the others.
Grate the parmesan and throw in the same bowl. Min them up a bit.
When the pasta is done take about 1...1,5 dl of boiling water and mix in with other ingredients. Finally, add in the spaghetti. Enjoy!