Eggplant cheeseburger

1 large eggplant, cut into 4 slices
1 tbsp olive oil
1 cup polenta
3/4 cup dry breadcrumbs
1/2 tsp white pepper
1 large brown oinon, cut into 4 rounds
4 slices jarlberg cheese
4 sourdough rolls
2 large tomatoes, cut into thick slices
1/2 bunch basil
1 cup home made tomato relish

1. Brush both sides of each eggplant slice with oil. Put polenta, breadcrumbs and pepper in a bowl and toss to combine. Spread mix on a sheet of baking paper and coat both sides of each eggplant slice with mixture.
2 Preheat BBQ or hotplate and spray each side of eggplant sice with oil. Cook eggplant and onion rounds for 2-3 minutes on each side. Top each eggplant slice with a slice of cheese and cooke for 1-2 mins until cheese starts to melt. Cook rolls, split side down, for 1-2 mins until golden.
3. Top base of each roll with a slice of tomato, a cheese-topped eggplant slice, 2-3 basil leaves and an oinon round. Top with a spoonful of tomato chutney and serve.