3 mushroom and gruyeere tart with Recipes

all-purpose flour (about 1 cup plus 2 tbsp), kosher salt, freshly ground black pepper, baking powder, extra-virgin olive oil, ice water, precubed peeled butternut squash, extra-virgin olive oil, divided, prechopped onion, aged gruyere cheese, shredded and divided (about 2/3 cup), eggs, kosher salt, divided, freshly ground black pepper, divided, prechopped pancetta, presliced shiitake mushroom caps, dry white wine

ricotta cheese , preferably whole milk, egg yolk, extra virgin olive oil, extra virgin olive oil, assorted fresh wild mushrooms, sliced (such as chanterelle, oyster, or stemmed shiitake), fresh thyme leaves, butter, green onion , thinly sliced on diagonal (about 1 1/2 cups), sheet frozen puff pastry, thawed (half of 17.3-oz package), egg yolk, beaten to blend with, water (for glaze), sliced gruyere cheese