My kids love anything saucy they can put over rice. This makes a TON, but I usually freeze most of it. And I don't know why Costco's stew meat is so good, but it always cooks up fantastic and tender.
1 package Costco stew meat
1 package of Au jus mix (just the packet in the isle by the sauce and gravy mixes)
Put in slow cooker on low for 5-6 hours. Then mix in 3 cans cream of mushroom soup and 2 c. sour cream. Serve over rice, pasta or potatoes.