15-minute Greek chicken

Ingredients (4 servings): 4 chicken breast steaks 2 tablespoons extra virgin olive oil 1 brown onion, finely diced 2 garlic cloves, crushed 2 teaspoons dried oregano 700g tomato passata (see passata recipe on the Manna website) 1 teaspoon white sugar 250g cherry tomatoes 3/4 cup pitted olives 30g Greek fetta, crumbled Fresh oregano leaves, to serve…