Mixed mushroom tart with walnut & gruyère crumble

Today has been a day of moments where I have wanted to give myself a lot of pats on the back. One of those moments was when I whipped up this little beast of a tart and took my first bite. I know not everyone is a fan of mushrooms but I really dig the slippery little suckers. When cooked correctly they are flavoursome and tender. We are lucky to have a strong mushroom industry in Australia which gives us access to lovely little exotic mushroom morsels, like the range that I used for this tart.