Prepare the pasta and the peas according to the instruction on the packaging. When done, drain water away in strainer.
In a small bowl, mix the yogurt with the sugar, salt and curry powder.
Set the curry dressing aside and let it settle for 20 minutes.
Rinse the spring onions and cut them into smaller pieces.
When the pasta and peas is drained and cooled down, mix it with the curry dressing and spring onions.
Save some of the onions for decoration on top of the pasta salad.