Tarte à la tomate (tomato tart) recipe | Gourmet Traveller

Ingredients

• 400 gm savoury shortcrust pastry (see note)
• 1½ tbsp Dijon mustard
• 100 gm Gruyère, coarsely grated
• 2 small golden shallots, thinly sliced
• 2 tbsp coarsely chopped thyme, plus extra sprigs
• 2 tbsp coarsely chopped rosemary, plus extra sprigs
• 2 tbsp coarsely chopped sage, plus extra sprigs
• 2 ripe heirloom tomatoes, thinly sliced
• Extra-virgin olive oil, for drizzling
• Green leaf and shallot salad, to serve