Bring a small pot of water to a boil. Add couscous and cook as directed on package (usually about 15 minutes for pearled couscous). Drain excess water. Rinse with cool water, strain, then set aside.
In a large bowl, combine the chickpeas, cucumber, red pepper, tomatoes, onion, and parsley. Add cooked and cooled couscous and stir to combine.
Prepare the dressing by combining all of the ingredients in a small bowl or measuring cup. Whisk until evenly incorporated.
Pour dressing over top of the ingredients in the large bowl then stir until everything is evenly coated in dressing. Top with vegan feta and stir. Serve immediately or store in an airtight container in the refrigerator for up to 5 days.
Notes
This recipe makes 4 large servings but can be divided into smaller portions if desired. The nutrition facts are for 1/4th of the recipe but will vary depending on the brands you use (couscous, feta, etc.)