...are essential to survival in case of an attack from Mars. Do you have any preferences for what toppings to use - i.e. which ones do the best job to keep the martians away - garlic maybe?
Garlic is useful in so many applications that of course large quantities should be kept on hand. Personally, I never let my war stocks of garlic get below about 150 bulbs, or roughly a 2 week supply. Other choices will of course vary from person to person, but for most inter-planetary raids I have found that broccoli and green peppers are especially useful.