In a medium saucepan, bring the water to a boil. Remove from the heat and stir in the couscous and salt. Cover and let sit for 10 minutes then fluff with a fork and let cool slightly.
Whisk the olive oil, vinegar, garlic, and fresh dill together in a large bowl. Add the cooked couscous and toss to coat. Let cool slightly while preparing vegetables.
Into the bowl, add cherry tomatoes, cucumber, parsley, scallions, and chopped peppers. Season with salt and pepper to taste; gently toss to combine. Add additional olive oil to taste.
To serve, divide the salad into portions and top each with flaked smoked salmon and feta. A squeeze of lemon or a lemon wedge served on the side is delicious.
Notes
Storing the Mediterranean Couscous Salad: This salad can be refrigerated in a covered container for up to 3 days. You may want to drizzle additional olive oil over the salad before serving.
Storing Smoked Salmon: Smoked salmon can be refrigerated for up to 2 weeks unopened. If opened, I like to use it within 4 to 5 days. It can also be frozen in its packaging for up to 3 months.