Stuffed Mushroom Dip

olive oil

ground Italian sausage

garlic, minced

white button mushrooms, roughly chopped (about 5 cups)

Kosher salt and freshly ground black pepper

cream cheese, cut into cubes

grated Parmesan 

half-and-half

unsalted butter, melted

panko 

fresh flat-leaf parsley, chopped

baguette, toasted and sliced, for serving