Season the chicken breast evenly on both sides with sea salt, black pepper, and dried oregano.
Heat 1 teaspoon of the extra virgin olive oil in a medium skillet over medium-high heat.
Add the chicken to the skillet and cook for 6 to 7 minutes per side until the exterior is golden brown and the internal temperature reaches 165°F.
While the chicken is cooking, place the chopped kale in a large mixing bowl and massage it with a small splash of the lemon juice for 1 minute to soften the texture.
In a small bowl, whisk together the remaining 1 teaspoon of olive oil, the rest of the lemon juice, and the minced garlic to create the dressing.
Remove the chicken from the pan and let it rest for 3 minutes before slicing into thin strips.
Assemble the bowl by placing the cooked quinoa and massaged kale at the base.
Arrange the sliced cucumber, cherry tomatoes, and sliced chicken on top of the greens and grains.
Drizzle the lemon-garlic dressing over the entire bowl and serve immediately.