1. Rinse the quinoa under cold water using a strainer.
2. In a saucepan, combine the quinoa, water, and a pinch of salt. Bring to a boil.
3. Reduce heat to low, cover, and simmer for 15 minutes or until the water is absorbed.
4. Remove from heat and let it sit, covered, for 5 minutes. Fluff with a fork.
5. In a mixing bowl, combine the cooked quinoa, olive oil, cherry tomatoes, cucumber, red onion, parsley, and lemon juice. Mix well.
6. Serve immediately or refrigerate for later.