Preheat oven to 200°C/180°C fan-forced. Line a large baking tray with baking paper.
Slice 2cm off tops of rolls. Remove bread, leaving 1cm border. Tear tops and bread into rough cubes, then place on tray with rolls.
Place kale in a large microwave-safe bowl. Microwave on medium for 3 minutes or until defrosted and slightly warmed. Fold in onion and ricotta. Season with pepper. Divide mixture among rolls, then bake for 10 minutes or until warmed through and bread is lightly toasted. Serve with capsicum, baby cucumber and torn bread.
