Butternut Squash without julienne

1/4 cup dried porcini mushrooms (about 1/4 ounce) 1 1/2 tablespoons olive oil 2/3 cup chopped pancetta (about 2 1/2 ounces) 1 cup mashed cooked butternut[...]

5 cups (3/4-inch) cubed peeled butternut squash (about 2 pounds) 1 (1 1/2-ounce) slice white bread 4 teaspoons olive oil, divided 2 cups thinly sliced onion 1[...]