Southwestern beef in the slow cooker

I like to put my slow cooker to use on Sundays during football season.  I found a simple recipe for southwestern beef so I thought I would give it a try tonight.  I guess I didn't use enough seasoning when I browned it because it tasted just like roast beef.  That taste is ok, but nothing exciting.  I might make the recipe again, but I'd use different spices.  At least it made plenty of leftovers.  The sauce wasn't as chunky as it may be it should've been given the picture in the recipe.

I've now polished off 57 recipes towards my challenge.