My third tart in a row and this one is savory for a change - it's from my friend Mona's book, The Chef and I. You can find Mona over on her blog Wise Words.
Mona said "This tart is as simple as rolling out a bit of pastry, ladling in a goodly amount of Dijon mustard onto the pastry, filling it to the brim with a selection of grated hard cheeses and topping it all with some beautiful sliced tomatoes. Bake at 180ºC for 30 minutes, then eat."
|P.S. I tried it with mushrooms - it's not as nice.|