Preheat oven to 200°C (180°C fan-forced). Cut a shallow cross into the flat side of each chestnut shell

Place prepared chestnuts onto a baking tray and bake for 15 to 20 minutes or until the shells split open

Once cooked, remove chestnuts from the heat and wrap in a clean tea towel for 5 to 10 minutes. While chestnuts are still warm, quickly peel off the outer brown shell and remove the papery thin skin underneath

Heat oil into a large frying pan over medium-high heat. Add bacon and cook, stirring often, for 3 minutes. Add garlic and chestnuts and cook, stirring often, for 2-3 minutes or until chestnuts are golden and bacon is crisp

Meanwhile, plunge beans into a medium saucepan of boiling water, cover and bring to the boil. Cook beans for 2-3 minutes or until just tender. Drain beans

Add beans to chestnut mixture. Toss over heat until well combined. Season to taste. Sprinkle with lemon rind and serve