Pat the chicken breast dry and season both sides evenly with sea salt, black pepper, garlic powder, and dried oregano.
Heat the extra virgin olive oil in a medium skillet over medium-high heat until shimmering.
Place the chicken in the skillet and cook for 5 to 7 minutes per side, or until the internal temperature reaches 165°F and the exterior is golden brown.
While the chicken cooks, dice the cucumber and red onion, and halve the cherry tomatoes.
Remove the chicken from the pan and let it rest for 3 minutes before slicing into thin strips.
Assemble the bowl by placing the warm cooked quinoa at the bottom.
Arrange the sliced chicken, cucumber, cherry tomatoes, and red onion over the quinoa.
Top with crumbled feta cheese and a scoop of hummus, then drizzle the entire bowl with fresh lemon juice before serving.