Rustic Vegetable Casserole

Ingredients

• 2 tablespoons olive oil
• 2 carrots, peeled and turned
• 3 peeled and turned Yukon Gold potatoes
• 1 salsify, peeled and cut into 2-inch strips
• 1 ripe pear (small), peeled, cored and cut in two
• 2 turnips, peeled and turned
• 1 porcini mushroom, sliced
• 1 pint mushroom stock (made from mushroom stems)
• 2 swiss chard leaves (large) with the stem and heart removed
• 8 peeled seedless grapes