Rinse quinoa and combine with water and a pinch of salt in a small saucepan.
Bring to a simmer over medium heat and cook for 12 to 15 minutes until quinoa is tender.
Drain quinoa if needed and set aside to cool.
In a small jar, whisk olive oil, lemon juice, honey, lemon zest, minced garlic, oregano, basil, salt, and pepper until emulsified.
Pour one-third of the dressing over the chicken breasts, coating them thoroughly. Reserve the remaining dressing.
Preheat a grill pan or outdoor grill to medium-high heat.
Grill the chicken for 6 to 8 minutes per side until cooked through and internal temperature reaches 165°F.
Divide cooled quinoa among four bowls.
Top with grilled chicken, diced cucumber, chopped tomatoes, and diced red onion.
Add crumbled feta cheese and kalamata olives to each bowl.
Drizzle reserved dressing over the bowls before serving.