Preheat oven 200°C fan forced. Place the mushrooms, stalk side up on a baking tray and drizzle a little olive oil . Season with salt and pepper and scatter over thyme and sliced garlic. Roast for 5 minutes or until almost tender. Remove from the oven.
Meanwhile, in a large bowl mix the goats cheese, spinach, chopped parsley and pine nuts together and then check the seasoning. Spoon evenly among the mushroom and then sprinkle with panko crumbs. Drizzle a little melted butter over the crumb and then return to the oven for a further 5 minutes or until golden on top.
Serve with toasted bread and lemon wedges.