In saucepan, bring to a boil the milk, water, oregano, salt and pepper. Stir in quinoa, cover and reduce to low, simmering for 20 minutes.
Once all liquid is absorbed and quinoa is soft, stir in lemon zest and fluff with a fork. Spread out onto a baking pan, and allow to cool. Set aside.
Prepare remaining ingredients, dicing as large or small as you’d like. Once the quinoa has cooled, combine everything together and adjust seasonings and flavorings to taste.