Preheat oven to 200°C/180°C fan forced. Lightly spray a 1.5 litre (6-cup) baking dish with oil.
Heat oil in a large frying pan over medium heat. Add onion and carrot. Cook, stirring, for 5 minutes or until softened. Increase heat to high. Add mince and cook, breaking up any lumps with a wooden spoon, for 5 minutes or until browned. Add garlic, cumin and chipotle. Cook, stirring, for 1-2 minutes or until aromatic. Add tomato paste and cook, stirring, for 1 minute.
Add tomato and 185ml (¾ cup) water to the pan and bring to the boil. Reduce heat to low. Simmer, uncovered, for 10 minutes. Add zucchini and capsicum. Simmer for 8 minutes or until vegetables are tender and mixture has thickened. Season.
Meanwhile, place corn, chilli, eggs and baking powder in a blender. Blend until well combined. Add feta and pulse to combine. Season.
Transfer mince mixture to prepared dish. Top with the corn mixture. Bake for 30 minutes or until corn topping is golden and puffed. Sprinkle with extra chilli and coriander to serve.
