Melt dark chocolate and olive oil in a heatproof bowl over a pan of simmering water, making sure the bottom of the bowl does not touch the water. Remove from heat, add honey. Stir until mixture is smooth and well combined.
Place pistachios into a shallow bowl. Dip each strawberry halfway into the dark chocolate mixture.
Place on a baking paper-lined tray and allow to partially set – about 5 minutes before rolling in chopped pistachios.
Return to tray and chill for 10 minutes to set before serving.