In a glass dish or in a large sealable bag, combine all the ingredients. Add the meat, mushrooms, and onion. Coat thoroughly. Close and refrigerate for at least 8 hours.
Preheat the grill or a skillet over high temperature. Lightly oil.
Thread the meat onto the skewers alternately with the mushrooms and onion. Season with salt and pepper. Grill the skewers for about 3 to 4 minutes per side for medium rare or until the desired doneness. Brush with the marinade while cooking.
Serve over couscous and with roasted red bell peppers.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.