Step 1
Marinate the chicken by combining lemon juice, minced garlic, oregano, salt, and pepper. Let it sit for at least 30 minutes to absorb all the bright, zesty flavors.

Step 2
Grill or pan-sear the chicken over medium-high heat for about 6–8 minutes per side, until fully cooked and slightly golden on the outside.

Step 3
Transfer the cooked chicken to a cutting board and slice thinly against the grain for tender pieces.

Step 4
While the chicken cooks, prepare the quinoa if it’s not already made. Fluff it with a fork and set it aside.

Step 5
Whisk together the tzatziki sauce ingredients—Greek yogurt, lemon juice, and minced garlic—until smooth and creamy. Adjust the seasoning if needed.

Step 6
Slice the cucumbers and halve the cherry tomatoes, preparing the fresh veggie toppings.

Step 7
To assemble, divide the quinoa among serving bowls.

Step 8
Top with sliced chicken, cucumbers, cherry tomatoes, and a sprinkle of crumbled feta.

Step 9
Drizzle generously with tzatziki sauce and garnish with fresh herbs if you like.

Step 10
Serve immediately while everything is fresh and vibrant.