Slice the butternut in half lengthways. Slice a bit off the round side to give it a flat surface to lie on.
You can either boil the two halves in water on the stove until the flesh is soft enough to scoop out and the pips can be removed, or you can take the pips out, brush the two halves with olive oil, season with salt and pepper and place them on the grill in your Weber. Replace the lid and leave them for about 60 minutes to cook, checking from time to time. Once the flesh is soft enough to scoop out, hollow out the butternut so that you are left with a margin of flesh to support the filling.
Now you have butternut “boats” to enjoy with your favourite filling – with or without meat.