This is the recipe my wife used on our roast this evening and it turned out awesome!
3 lb roast
1 lg sliced onion
1 tbsp soy sauce
1 tbsp worcestershire sauce
1 can cream of mushroom soup
1 tbsp garlic salt
1 tbsp black pepper
i pk onion soup mix
mix ingredients together other than the onions, let set for 15 minutes, stir, then pour over sliced onlons and roast.
slow cooker, 6 hrs on low
oven, 1 hr at 350
This is the first time weve done it this way, and it was awesome!
Just thought id share. Enjoy!