Leek and Mushroom Tart with Roasted Swede and Vegan Pesto

I’m doing Veganuary to challenge my foodie brain to come up with dishes I not only want to eat, but I want to crave. The product of this week’s industry is a vegan tart, my new favourite craving. This tart is a complete dream; a deep mushroomy leek base, hot with mustard, topped with sweet…