Preheat oven to 425°F and place a rack in the center of the oven.
Place about 3 tablespoons, 3 turns of the pan, of olive oil in Dutch oven. Arrange potatoes in single or lightly shingled layer in pot and season with salt and pepper. Top with garlic, onions, zucchini, thyme, tomatoes, basil, leeks, artichoke hearts, parsley and celery. Pour in stock and nestle in the cheese rind; top with sliced mushrooms and drizzle with more oil