Mediterranean vegetable bake

• 2 tsp olive oil
• 1 medium onion, chopped
• 1 red capsicum, chopped
• 2 zucchini (courgettes), sliced
• 1 cup mushrooms, sliced
• 500g jar tomato pasta sauce
• 300g can butter beans, rinsed and drained
• 2 tbs fresh basil, chopped
• ¼ tsp salt (optional)
• 1 large eggplant
• 2 tsp olive oil, extra

Crumble

• 2 Weet-Bix, crushed
• ¼ cup fat-reduced cheese, grated
• 2 tsp olive oil