To make planning meals and shopping for ingredients a little easier, check out Kitchen Monki. On their site (you can sign ion with your Facebook account!), look around for meal recipes and, at the touch of one button, add the ingredients to your shopping list manager.
Repeat until a week's worth of family dinners appears deliciously achievable. If you prefer, add extra items to the list to taste (You can't make a trip without grabbing some unnecessary cookies, can you?).