I would either make a scramble or a quiche.
For a quiche, either make or buy a pie casing (there is a recipe for pie casing on my blog, here:
http://thoughtfulkitchen.wordpress.com/2010/07/01/rustic-french-lentil-pie/). You can pretty much add whatever veges you like, but personally I would saute off some finely chopped leek and onion, add some small dices of carrot, parsnip, sweet potato, some peas and corn and cut up green beans, maybe some mushrooms. Stir it all through the tofu, with a tablespoon or so of plain flour, some salt and pepper and maybe some fresh herbs. Pour it all into the pie case, cover the top with slices of tomato and bake until golden and firm!
For a scramble, you can use anything you might have preciously put into scrambled eggs: onion, mushrooms, tomatoes, corn etc. Mash it all together with the tofu and fry off - just as you would with eggs. You can add some extra flavour by putting in a dollop of mustard or a splash of soy sauce. Serve on toast.
I'm a huge fan of silken tofu. If you want to do something a little more fiddly - deep fried silken tofu dollops = amazing!