This butternut squash tart is made with a flaky puff pastry crust topped with creamy cashew cheese, roasted butternut squash, garlic and sage. It's absolutely delicious and can be served as an appetizer or vegan holiday main dish.
Preheat the oven to 400°F.
Place all of the ingredients for the cashew cheese into a blender or food processor bowl fitted with an s-blade. Blend until smooth. Taste-test the mixture and season it with more salt if needed.
Arrange the butternut squash slices on a baking sheet and drizzle them with a teaspoon of olive oil. Sprinkle the squash lightly with salt and pepper.
Place the garlic cloves into a small oven safe dish or skillet and toss them with 2 tablespoons of olive oil.
Place the puff pastry on a lightly floured surface and use a rolling pin to roll it into a 9 x 13 inch rectangle. Carefully transfer the rectangle to a baking sheet.
Use a fork to poke holes in the puff pastry, spacing them 1 to 2 inches apart, then spread the cashew mixture evenly over the puff pastry, leaving about a ½ inch border around the edges.
Place the baking sheets with the puff pastry and squash into the oven, along with the dish containing the garlic and olive oil. (Note 4)
Bake everything for about 20 minutes, but keep an eye on the oven just in case the items finish at different times. The puff pastry is done when it has puffed and turned golden brown around the edges. The squash is done when it can be easily pierced with a fork. The garlic is done when it turns golden brown.
Distribute the roasted squash and garlic over the cashew cheese mixture on the puff pastry, discarding any excess oil used for cooking the garlic. Drizzle the squash with balsamic vinegar, sprinkle with salt and pepper, then with fresh sage.
Slice and serve the tart.