Step 1

Spray a large saucepan with oil and heat over medium heat. Cook onion and zucchini, stirring occasionally, for 5 minutes or until soft. Stir in the chilli powder for 1 minute. Stir in the beans and tomato. Simmer for 10 minutes or until the mixture thickens. Use a fork to lightly mash the beans.

Step 2

Preheat grill on high. Divide bean mixture among four 350ml baking dishes. Arrange corn chips around the edge of each dish and sprinkle with cheese. Cook under grill for 5 minutes or until the cheese melts.

Step 3

Top with the yoghurt and sprinkle with the spring onion and coriander.