From the spring onions, take the white bulb + ½ inch above bulb, where it starts to turn light green. Roughly chop, and combine with all other ingredients in a high-speed blender. Mix until the vinaigrette has a smooth, creamy consistency.Cook pasta according to directions. When finished cooking, drain and set aside to cool.Chop tomatoes and haricots verts, mixing 1½ cups each with pasta once it has cooled.Finely chop kale, and combine 1 cup with pasta salad.When pasta and veggies are mixed, drizzle generously with vinaigrette.Serve and enjoy!