Katie made these for freezer group once and I've seen the recipe all over the blogosphere. There are a few additions you can make but here's the general run-down.
1 1/2 lbs beef stew meat
1 packet dry onion soup mix
1 can cream of ?? soup (I make my own)
1 (14 oz) can beef broth
Salt & pepper
Put stew meat in bottom of crock pot. Season with salt and pepper.
In bowl, combine soup mix, soup and beef broth. Pour over stew meat and stir to cover meat.
Cook on low 6-8 hours, till meat is insanely tender.
Serve over mashed potatoes (our favorite!), rice or noodles.
NOTE: You could add a can or two of mushrooms to the crock pot if desired. While my husband would love that, I'm not a mushroom fan, so I leave them out.