Set your slow cooker on low and go on about your day knowing that dinner is gonna be delicious. In this simple set-it-and-forget-it dish, beef chuck roast cooks in a flavor-packed rosemary marinade, full of fresh rosemary leaves and onions for a succulent, highly comforting entree. The habanero pepper delivers a detectable heat, but the spice factor is not overwhelming. However, if you're sensitive to heat, use a quarter of the pepper instead of half (or omit it altogether). The remaining liquid in the slow cooker can be cooked down on the stovetop into a rich, flavorful gravy to top the beef, along with your favorite starchy side—rice, mashed potatoes, or roasted sweet potatoes would all make great options.