This is a recipe I came up with after having leftover roast and gravy. I often use meat from leftover roast, but of course, you don't have to. It just makes it a little quicker to put together if you do! So substitute as you feel necessary with whatever beef you have on hand! This could also be made in the crockpot after sauteeing the meat and veggies. Just add the noodles to the crockpot about 30 minutes before the soup is done.