Mince the garlic and season the chicken breast evenly with the dried oregano, sea salt, black pepper, and garlic.
Heat the extra virgin olive oil in a non-stick skillet over medium-high heat.
Add the chicken to the skillet and cook for 6-7 minutes per side, or until the internal temperature reaches 165°F and the outside is golden brown.
While the chicken cooks, halve the cherry tomatoes and dice the cucumber.
In a large serving bowl, layer the fresh baby spinach and top with the cooked quinoa.
Once the chicken is finished, let it rest for 2 minutes before slicing into thin strips.
Arrange the sliced chicken, tomatoes, and cucumber over the quinoa bed.
Drizzle the entire bowl with fresh lemon juice and toss gently to combine flavors before serving.