A versatile sandwich appeals to adults and kids alike.

The Game Plan

Stock a backpack with the essentials: bread knife, cutting board, and meaty Yin-Yang Sandwiches (recipe, below). Complete the lunch by buying:

Carrot sticks and hummus

Potato chips

Juice boxes (for the kids) and bottled water (for the adults)

Ice cream from a truck

Recipe

Yin-Yang Sandwiches Recipe (shown)

Tip: To satisfy everyone on your outing, make a crusty hero with a split personality: ham and cheese on one half for the kids; the same, upgraded with salami and peppers, on the other half for the adults.