Prepare the beans

• Drain and rinse the butter beans in a colander.
• Pat them dry as well as possible so they crisp up better in the oven.

Line the tray

• Line a baking tray with parchment paper, or grease it with olive oil if you don't have any.

Spread the Parmesan

• Spread the grated Parmesan over the tray in a slightly thicker, compact layer rather than spreading it out too much, so it holds together and breaks into chunks later.

Arrange the beans

• Place the butter beans on the cheese in a single layer.

Bake until golden

• Bake until the cheese is golden brown and crispy.

Cool and break into pieces

• Let the tray cool completely, then break the cheese and beans into crouton pieces.
• Serve with soups and salads or eat as is.