Cook the pasta according to the packet instructions. Once is cooked, drain the pasta and rinse it with cold water until the pasta is cold.
Chop all the vegetables and set aside.
Mix the mayonnaise, creme fraiche, dijon mustard, salt and pepper in a little bowl.
Open the tins of tuna and drain the water, put then in a large salad bowl and mix.
Then add the vegetables and mix and then add the pasta, mix again.
Add the dressing and mix very well. Keep it in the fridge until is ready to eat. Enjoy it with some delicious and refreshing agua fresca.