Liberally season the chuck roast on both sides with steak seasoning. Heat 12" skillet to medium high. Lightly oil your pan.
Brown your roast on both sides. This will take about 5 minutes each side.
Move roast to slow cooker or plate. Use 1/2 a cup of water to deglaze the pan. You will need a flat ended wooden spoon to scrape all of the stuck on seasoning off of the pan. You want all of this "fond" in your slow cooker. This extra step and time will make for an amazing flavor in the end.
Move your roast to the slow cooker. Pour pan drippings over meat. Pour entire jar of peppers, with brine, over your roast. Place lid on slow cooker and set to LOW. Cook on Low for 10 hours.
At the end of 10 hours. Remove peppers to a bowl and set aside. Remove meat to a plate. Pour Au Jus into a fat separator or skim with a ladle to remove excess fat. Pour into a separate container for serving.
Shred roast with 2 forks. Making sure to remove any excess fat to a trash bowl. Return the meat to the slow cooker.
Serve with crusty French baguette, mashed potatoes or roasted vegetables.