Pickle wraps and pinwheels are two of my favorite no-cook items. We usually have them appetizers, side dishes, snacks, etc, but I love them, so they're the first things that came to mind.
Pickle wraps involve thinly sliced ham being cover in cream cheese. Place a pickle at one end, roll up, and then slice into bite-sized pieces. Pinwheels are also a roll. Mix cream cheese with diced black olives, green chilies, green onions, and some salt. Spread out onto tortilla shells, roll up, and let refrigerate a bit to reharden before slicing into inch slices....they look like "pinwheels." They're good dipped in salsa, too.
For meals, sandwiches are always an easy one, and variations of them using tortillas, pitas, etc, are always good.