Preheat your oven to 375 degrees.In a food processor, add your oats and almonds, and pulse until crumbly.Next add your coconut oil, maple syrup, vanilla extract, and salt and pulse again for about 1minute, until it forms a crumbly dough.The dough should feel moist in your fingers, but not too wet.Press your dough into mini tart pans (or a large tart pan) with your hands firmly, until it covers the bottom of the pans, about ½ inch thick.Place your tart crusts in the oven for 16-18 minutes, or until golden brown.Remove and let cool.In a small bowl, mix your yogurt, vanilla, and maple syrup together.Using a spatula or spoon, spread the yogurt evenly on top of the tarts.Top with your fresh blueberries and serve immediately.