Thanks everyone, I know what I'm going to do now.
To simple, my husband (though funnily enough NOT my son) has a really sweet tooth, as do I, so desserts are a must for us! So I'm now on a roll too (albeit in a much less healthy direction) beacuse you may find sometimes you want to indulge yourself or your guests with more than fruit and cheese ....
A couple of favourites that can quite readily be converted into GF varieties are Banoffee Pie and Delia's Little Sticky Toffee puddings with Toffee Pecan sauce.
For the Banoffee, I make the base out of a variety of things filched from the cupboard, eg, ground nuts, GF breadcrumbs, GF cornflakes, sesame seeds, those GF rice crispies things that you can get in Brown Rice P, museli ... whatever I happen to lay my hands on! All mixed up with melted butter and some corn syrup if the mixture needs to be sweetened. The rest is as per normal. I'm a boil-the-condensed-milk-in-the-can-for-2-or-3-hours kinda girl, though I know some people get anxious about that. I've been doing it now for (argghhh am I really that old?) ... 18 years, without any accidents.
For the sticky toffee puddings, I use a variety of different flours ... usually some kind of combination including buckwheat and cornflour. I actually can't even really tell the difference myself any more ... the dates keep everything nice and moist and sticky, so the usual disintegration that GF cakes can be a victim of, is not at all apparent.