This vegan quinoa salad is a healthy and delicious meal that's perfect for lunch or dinner. To make it, cook some quinoa according to the package instructions. Let it cool, then mix it with some diced cucumber, cherry tomatoes, and avocado. Add some chopped fresh herbs (such as parsley, cilantro, or basil), and season with lemon juice, olive oil, salt, and pepper. Serve chilled or at room temperature for a refreshing meal.