Dice pickles, onion, and bacon

Pound slices of beef to 1/8 in thick

Season beef with salt and pepper, thinly spread dijon mustard on top of each slice

Divide pickle, onion, and bacon on one end of each beef slice

Roll up slices, tucking the ends in and securing with skewers or string

Heat butter in skillet, brown rolls on all sides adding butter as needed

Once browned, add about 1 cup of hot water, gently stirring up browned bits

Return beef rolls to skillet, bring to simmer and cover until tender, about 1 hour

Remove beef, thicken gravy with 1-2 tbsp of flour and water as needed

Season gravy to taste with salt and pepper

Remove string or skewers and serve with gravy