• Step 1: Preheat your oven to 400°F (200°C). Season the chicken breasts with salt, pepper, and dried oregano.
• Step 2: Heat the olive oil in a large skillet over medium-high heat. Add the garlic and sauté for 1 minute until fragrant. Add the chicken breasts and cook for 4-5 minutes per side, or until the chicken is cooked through and no longer pink in the center.
• Step 3: Meanwhile, cook the quinoa according to the package instructions. Fluff with a fork and set aside.
• Step 4: Dice the bell peppers and cucumbers while the chicken and quinoa are cooking.
• Step 5: Assemble the grain bowls by dividing the cooked quinoa, chicken, bell peppers, and cucumbers evenly among 4 serving bowls. Top each bowl with crumbled feta cheese.