BUTTER BEAN & AUBERGINE PESTO ON TOAST

11⁄2 tbsp olive oil •1 garlic clove, sliced •400g can butter beans, drained and rinsed •3 tbsp Belazu Aubergine & Parmesan Pesto •2 tbsp single cream •1 tsp lemon juice •175g pack Waitrose Smoky Chargrilled Artichokes in a Herb Dressing, roughly chopped •4 small slices sourdough •10 mint leaves, finely shredded