You don't have to cook anything to make this sandwich -- pick up a rotisserie chicken, or substitute leftover Thanksgiving turkey.
In a bowl, whisk together sour cream, jalapenos, and lime juice; season with salt and pepper.
Spread sandwich wraps with sour-cream sauce, leaving a 2-inch border. In center of wraps, layer equal amounts of baby spinach, shredded chicken, black beans, tomato, onion, and avocado. For each wrap, fold two sides of wrap over filling, then roll tightly, ending seam side down.