Open face chicken sandwich

I actually found this recipe for opened face turkey sandwiches.  We don't make a lot of turkey but I modified it and use chicken instead.

3-4 bonless skinless chicken breasts
1/2 tsp rubbed sage
2 jars chicken gravy
mashed potatoes (can make your own or buy the frozen homestyle potatoes)
1/2 tsp poultry seasoning
1 tsp Worcestershire sauce
6 slices white bread, toasted


Place chicken in 3-4 quart slow cooker.  Sprinkle with sage.  Top with gravy.
Cover and cook on low 8-10 hours.
About 10 minutes before serving, cook mashed potatoes.
Remove chicken from cooker, cut into slices
Stir poultry seasoning and Worcestershire sauce into gravy in cooker.
Place chicken on each toast slice, top with mashed potatoes.
Spoon gravy over potatoes.