Preparing Quinoa Lentil Salad with Lemon Vinaigrette involves the following simple steps:

1. Rinse Quinoa and Lentils: Start by rinsing the quinoa and lentils under cold water in separate strainers.
2. Cook Lentils: In a pot, add the lentils and 2 cups of vegetable broth or water. Bring to a boil, then reduce heat and simmer for about 20-25 minutes until tender. Drain any excess liquid and set aside.
3. Cook Quinoa: In another pot, combine quinoa and 2 cups of water or vegetable broth. Bring to a boil, then cover and reduce the heat to low. Cook for about 15 minutes. Once done, fluff with a fork and let it cool.
4. Prepare Vegetables: While the quinoa and lentils are cooking, dice the cucumber, bell pepper, and cherry tomatoes. Finely chop the red onion and parsley.
5. Make Lemon Vinaigrette: In a small bowl, whisk together olive oil, lemon juice, lemon zest, salt, and pepper until emulsified.
6. Combine Ingredients: In a large mixing bowl, combine cooked quinoa, lentils, and prepared vegetables. Pour the lemon vinaigrette over the mixture and gently toss until everything is evenly coated.
7. Adjust Seasoning: Taste and adjust seasoning if necessary, adding more salt and pepper to your liking.
8. Chill: Let the salad chill in the refrigerator for at least 30 minutes to allow the flavors to meld.
9. Serve: Fluff the salad before serving and garnish with additional parsley if desired.

These steps will lead you to a wonderful and refreshing Quinoa Lentil Salad with Lemon Vinaigrette that can be enjoyed by everyone!