Add beans and gently stir, taking care not to break the beans.
Reduce heat to low. Add cashew cream, capers, lemon zest (from 1 lemon) and lemon juice (from said lemon). Season with salt and pepper. Cook for a few minutes, giving the beans time to become acquainted with, and absorb the flavour. Thin sauce with a little bit of water, if it thickens too much. Garnish with freshly chopped parsley and serve.