Cook the couscous: Place couscous in a bowl, pour boiling water over it (1:1 ratio), cover, and let sit for 5 minutes. Fluff with a fork and allow to cool.
Prepare the ingredients: Dice the avocado, slice the onion or shallot, and chop the parsley.
Assemble the salad: In a large bowl, combine the couscous, salad greens, avocado, onion, pomegranate seeds, feta cheese, and pumpkin seeds.
Make the dressing: In a small bowl, mix olive oil, vinegar, salt, pepper, and chili if using. Pour over the salad and toss to combine.
Serve and enjoy: Enjoy immediately or store in the fridge for up to 2 days.