From the source of 101 20-Minute Appetizers and 101 10-Minute Meals (from which I have used a number of recipes), comes 101 20-Minute Picnic Dishes. Of the dishes he lists (and many of them are quite tasty sounding), I definitely think this one may enter the repertoire:
8 COLD PEANUT NOODLES Cook Chinese egg noodles or regular spaghetti. Drain and rinse. Toss with sesame oil, peanut butter (or tahini), sugar, soy sauce, ginger, vinegar, black pepper (lots) and chili oil (optional). Pack shredded seeded cucumber, cooked shrimp and chopped scallions separately.