Quinoa lends itself to lemony salads, and the rainbow mix is particularly nice because each type of quinoa has a slightly different texture. The pearl white grains are the fluffiest, the red and black more compact.
02Transfer the quinoa to a large bowl. Mix together the lemon juice, salt to taste and cumin, and toss half of it with the quinoa. Allow the quinoa to cool. Combine the remaining lemon juice and olive oil, and toss with the cooled quinoa. Add the remaining ingredients, except the lettuce leaves, and toss together. Taste and adjust seasoning. Serve on a large platter or in a wide salad bowl, garnished with the lettuce leaves.