I make a variation of your recipe in my Crockpot:
1 lb stew meat
3 10.75-oz cans Golden Mushroom soup
1 cup chopped onions
4 tsp minced garlic
1 1/2 tbs Worcestershire sauce
3/4 cup water
4 oz cream cheese
1 1/2 tsp beef Better Than Boullion concentrate
1/2 packet onion soup mix
8 oz sliced mushrooms
1 tsp butter
Stir stew meat, mushroom soup, onion, Worcestershire sauce, water, garlic, onion soup mix, and beef broth concentrate in crockpot. Cook on Low for 5-6 hours until meat is tender.
Saute mushrooms in butter, then stir into crockpot 30 minutes before serving.