01 - 
                Spray the inside of the crockpot insert lightly with nonstick cooking spray.
              
              
              
                02 - 
                Add frozen meatballs, mild pepperoncini peppers including juice, ranch seasoning mix, and brown gravy mix to the crockpot. Stir gently to combine.
              
              
              
                03 - 
                Place thin slices of unsalted butter evenly over the top of the meatballs mixture.
              
              
              
                04 - 
                Cover and cook on HIGH for 3 to 4 hours or on LOW for 6 to 7 hours until meatballs are heated through and flavors meld.
              
              
              
                05 - 
                Serve warm over mashed potatoes, rice, egg noodles, pasta, or steamed vegetables as desired.