Halve raw spaghetti squash with a sturdy sharp knife, scoop out, and discard the squash poop with a spoon.
Place halves onto an oven safe cooking dish face up.
Clean head of garlic and thinly slice garlic, (the larger pieces of garlic brown nicely, and offer a wonderful layer of complexity to the dish).
Spread garlic into the bowl like shape of the squash, salt and pepper vigorously, drizzle with a 50/50 mixture of olive oil, and vegetable oil (get the oil everywhere inside the squash).
Place onto the upper middle rack of the oven for about 30-40 minutes. (You will know it is ready when the squash separates with little resistance from the skin).
Remove from oven, and place in coldest location possible for at least 20 minutes, before separating from skin.
Use a fork to scoop and separate squash strands, add any other ingredients you like at this point.
Parmesan, Romano, or Pecorino, Feta, are all excellent additions to this dish, as well as, meat, sausage, veggies, olives, the list is endless.
WARNING **** If you use a loose tomato based sauce DO NOT add it immediately to the squash; this makes the squash runny, mushy, and unpalatable. Instead garnish the dish with a little bit of sauce atop the squash, and then offer more sauce on the side, in a separate dish.
If you ever had it served this way you know what I mean.
You can also take any leftovers and add a little bit of flour, and make into patties and fry.