In a small sauce pan, sauté the onions until translucent. Add the garlic and oregano and cook for another minute.
Add the quinoa to the pan and toast it for a minute.
Add the vegetable broth, season with salt and pepper and stir once. Cover the pan with a lid and bring to a boil. Reduce the heat to a low simmer and cook for about 40 minutes until all liquid has evaporated and quinoa is tender.
Fluff quinoa with a fork and let cool in the fridge for about 30-40 minutes (or you can make this ahead and let cool overnight).
Mix in the other ingredients; olives, artichoke hearts, tomatoes, lemon zest and juice and drizzle with olive oil. Mix well.
Top with fresh mint and cubed feta. Add the feta towards the end so you don't risk breaking it up while you mix it. Taste for seasoning and adjust as needed. Serve.
Recipe courtesy: The Shiksa in the Kitchen