Chicken with Tomatoes and Olives

Ingredients

• • 1 lb (450 g) boneless, skinless chicken thighs
  • 1 large onion, cubed
  • 3 tbsp (45 ml) olive oil
  • 1 small eggplant, cubed
  • 1 large zucchini, cut into large rounds
  • 2 garlic cloves, chopped
  • 1 can (28 oz/796 ml) diced plum tomatoes (see note)
  • 1/3 cup (65 g) pitted kalamata olives, halved
  • 1 container (200 g) bocconcini cheese, drained and cut into pieces
  • 1/2 cup (75 g) mozzarella cheese, cubed
  • 1/4 cup (10 g) basil leaves