This Mediterranean quinoa salad is a healthy and refreshing dinner option. The salad is made with cooked quinoa, cherry tomatoes, cucumber, red onion, feta cheese, and a lemon vinaigrette. It's high in protein, fiber, and healthy fats. The salad is also gluten-free and can be made vegan by omitting the cheese. Serve it with a side of grilled chicken or fish for a complete and balanced meal.