Rinse quinoa thoroughly and cook it in water (1:2 ratio) until soft and fluffy. Let it cool.
In a large bowl, add cooked quinoa.
Mix in chopped cucumber, cherry tomatoes, bell peppers, and onions.
Add boiled corn or chickpeas for extra protein.
In a small bowl, prepare dressing using olive oil, lemon juice, salt, and black pepper.
Pour the dressing over the salad and toss well.
Garnish with fresh herbs like parsley or coriander.
Serve fresh or chilled for best taste.