In a bowl combine and whisk together the olive oil, black pepper, salt, basil, parsley, garlic, sugar, bacon drippings and chopped onion. Pour over squash and toss to cover all the squash. Spread a layer of the squash in a 2 to 3 quart baking dish, sprinkle on half the cheese cracker crumbs, half the crumbled bacon and half the shredded cheese. Top with another layer of squash, cracker crumbs, bacon and cheese. Bake covered with foil in a preheated 350 oven for 50 to 55 minutes until squash is done.