Heat the oil in a small pan and saute the garlic.
Put the butter in a small mixing bowl, add the parmesan and the garlic with the oil and whisk til combined. Refridgerate til soft but solid.
Set your oven to broil, brush all the bread with the garlic butter and broil butter side up for 1-2 minutes til browned and fragrant
Add spaghetti to the sandwiches and garnish with parmesan and parsley