Cauliflower Rice Bowls with Grilled Chicken

Name: Cauliflower Rice Bowls with Grilled Chicken
Ingredients: 6 tablespoons plus 1 teaspoon extra-virgin olive oil, divided; 4 cups cauliflower rice (see Tip); ⅓ cup chopped red onion; ¾ teaspoon salt, divided; ½ cup chopped fresh dill, divided; 1 pound boneless, skinless chicken breasts; ½ teaspoon ground pepper, divided; 3 tablespoons lemon juice; 1 teaspoon dried oregano; 1 cup halved cherry tomatoes; 1 cup chopped cucumber; 2 tablespoons chopped Kalamata olives; 2 tablespoons crumbled feta cheese; 4 wedges Lemon wedges for serving