In a large bowl, place the flour. Add the roast and toss to coat with flour.
In a skillet over medium-high heat, brown the roast on all sides in the butter. Season with salt and pepper. Place in the slow cooker. Deglaze the skillet with the broth and mustard. Transfer to the slow cooker.
Place the potatoes, shallots and dates around the meat. Cover and cook on Low for 8 hours. It can be maintained on Warm for up to 6 hours.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.