Slow Cooker Italian Beef Sandwiches

Ingredients
2 lb shaved beef
2 pkgs dry Italian salad dressing mix
1 cup water
1 16- oz jar deli-sliced mild pepper rings drained
Sandwich rolls of choice
Optional: 1/2 to 1 tablespoon red pepper flakes

Instructions
Place beef into the slow cooker. Add Italian salad dressing mixes, water and if you want the extra kick of heat, add the optional red pepper flakes.
Cook on low setting 6-8 hours.
About 15 minutes before serving, stir in pepper rings.
Toast sandwich buns under broiler and then serve with a generous amount of Italian beef.