Oh Nigella - yeah my favourite recipe from her is th Elvis Sandwich! So good:) Toast two slices of bread, put mashed banana on one slice, peanut butter on the other and then fry in lots of butter, both sides. So fantasic and sweet/savoury and chewy and drippy. About a gazzillion calories worth of butter but just yummy. One of my ds's loves this too!
For pudding's I like the Joanne Harris French Kitchen book. The other recipes are a bit take or leave but the chocolate section is fab. The chocolate cake using ground almonds instead of flour. I make this for special occasions and EVERYONE, no joke, loves it. This means we have more 'special occasions' than are really required… you know, like er, It is Spring Time, lets have THAT cake.
Also I like Lizzie Vann's Organic baby cookbook
I make lots out of there and jazz it up - like salmon fishy risoles (with added spices and garlic) or meat balls etc. It taught me how to make the basics like that. Not that I actually used it for baby food per se, my babies didn't like food until very late, but it just helped me out in the kitchen when I started making 'family' meals.