Mix Greek yogurt, lemon juice, olive oil, oregano, garlic and salt & pepper together in a large bowl, then add chicken. Let marinate for 10 minutes.
Add quinoa, water, olive oil and salt to a rice cooker or pot on the stove and cook until the liquid has absorbed.
Heat a large skillet over medium-high heat, then add the chicken, cooking for 7-8 minutes until cooked through. Remove from heat and set aside.
Meanwhile, prepare toppings and garnishes, then make the garlic sauce.
Add avocado oil, soy milk, garlic lemon juice, apple cider vinegar, honey and salt to a Magic Bullet or small blender and blend to combine. Add about 1 tsp of water to the sauce after it's done blending to make it more pourable then you're ready to assemble your bowls!
Divide quinoa, chicken, toppings and garnishes among 4 bowls. Drizzle with garlic sauce, then serve and enjoy!