(usually haricot, but any will do)
cayenne/pimiento/chilli etc if required
other alternatives – a dash of soya sauce, vinagre de Jerez, soya milk (NO! not all three)
Soak beans overnight. Cook following day in pressure cooker for 25-30 mins depending on beans and pressure cooker.
Cook onion, ginger and garlic in olive oil, then add tomatoes, herbs and bean stock, ie cooking water. When cooked, and cool, zap.
Add beans to finished sauce and warm up to put on toast.
Original posts about baked beans below should you wish to read more about the humble (baked) bean