3 tbsp butter, softened
2 tbsp olive oil
1 clove garlic, finely chopped
6 cups brown mushrooms, e. g. baby bella, chestnut, brushed clean and sliced
3 cups potatoes, peeled and thinly sliced
3 – 4 tbsp parsley, chopped
kosher salt
freshly ground black pepper
Find it online: https://ohmyveggies.com/herbed-mushroom-potato-bake/