Start by cooking the gnocchi according to the package's instructions. When done, drain and set aside.
Next, make the pesto. Add the walnuts to the food processor and process until they're broken up into smaller chunks. Then, add the rest of the pesto ingredients and process until smooth but still slightly chunky.
In a bowl, mix gnocchi, pesto, chopped chives, and chopped snow/snap peas. Mix well until the pesto is evenly distributed.