Cook the quinoa according to package directions until fluffy. This one is a great non-GMO option.
Make the tzatziki:
Grate the cucumber, sprinkle with salt, and let it sit for 15 minutes.
Squeeze out the water.
Mix cucumber with Greek yogurt, garlic, dill, olive oil, and lemon juice.
Season with salt to taste, then chill until ready to serve.
Prepare the chicken:
In a medium bowl, finely grate the zest of 2 large lemons (about 2 tablespoons), then juice them (about ⅓ cup). Mince 4 garlic cloves (about 4 teaspoons), and add them to the bowl. Whisk in ¼ cup olive oil, 2 teaspoons dried oregano, 1 ½ teaspoons kosher salt, 1 teaspoon paprika, and ½ teaspoon black pepper until everything is combined.
Add the diced chicken fillet to the marinade and toss until coated. Cover and refrigerate for at least 30 minutes.
Heat a skillet with a drizzle of olive oil and cook the marinated chicken for 8-10 minutes until golden and cooked through. Let it rest for 5 minutes.
Build the bowls:
Add the cooked quinoa into the bowls.
Arrange chicken, cherry tomatoes, cucumbers, red onion, and Kalamata olives.
Sprinkle with shredded feta.
Add a generous scoop of tzatziki, drizzle with a little olive oil to finish, and an extra sprinkle of fresh herbs.