Gardener's Pie with Root Vegetables

Name: Gardener's Pie with Root Vegetables
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: European
Ingredients: 2-3 tablespoon Olive oil (or butter); 1 Onion (diced); 2 Parsnips (peeled, diced); 1 Carrot (peeled, diced); 2 Rutabaga (peeled, diced); 2 Turnip (peeled, diced); 1 Yam (peeled, diced); 2 cloves Garlic ( minced); 8 oz Mushrooms portobello; 1 teaspoon kosher salt; 1/2 teaspoon black pepper; 1 T fresh thyme leaves; 1 cup red wine; 2 tablespoons flour; 3 cups veggie stock; 1/2 teaspoon balsamic vinegar; 1/2 cup fresh Italian Parsley; 2 pounds Yukon gold potatoes; 2 teaspoons salt; 3 tablespoons olive oil or butter; 1/2 cup Milk or water more or less; White pepper