Savoury tarts are the solution for your future picnics and weekend lunches. Variations abound. Your base could be a shortcrust or puff pastry for sturdiness, or flaky fillo for something more delicate. Take your pick of the season’s best produce for your filling – tomatoes for summer, zucchinis in spring, leeks for winter, and mushrooms year-round. Cheese, be it Gruyère, ricotta or goat’s cheese, is never a bad idea.