Chef John's Tomato Tart
All ingredient amounts are approximates and will vary according to the size of your tart shell.
For best results, use the strongest French Dijon mustard you can find.
If you can't find Herbes de Provence, use an Italian herb blend.
Any fresh versions of the herbs in herbes de Provence will work as garnishes.
Nutrition data for this recipe includes the full amount of puff pastry. The actual amount of puff pastry consumed will vary.