In a medium saucepan, bring the vegetable broth to a boil. Once boiling, stir in the couscous and remove from heat. Cover and let it sit for about 5 minutes, or until all the broth is absorbed. Fluff the couscous with a fork and allow it to cool.
While the couscous is cooling, prepare the dressing. In a small bowl, whisk together the olive oil, minced garlic, lemon zest, and lemon juice until well combined.
In a large mixing bowl, combine the diced red bell pepper, halved cherry tomatoes, diced cucumber, and chopped parsley.
Add the cooled couscous to the mixing bowl with the vegetables, then pour the lemon-garlic dressing over everything.
Add red pepper flakes if desired. Gently mix all the ingredients together until evenly coated. Season with salt and pepper to taste.
Allow the salad to rest for at least 15 minutes to let the flavors meld before serving.
Notes
Allow the salad to rest for at least 15 minutes to let the flavors meld before serving.