Prepped beef mixed with other ingredients before tomorrow's stew
cut it they way you want, it does not matter at all, and produce and meat together woud be a mortal sin in the kitchen, but if you have a small batch, store one night, and you will cook them together anyway for hours, I dont see any problem with that either. But why wouldnt you store them separetely? If you cook your produce for six hours with the meat you wont have anything left....better to add them later..and store them sep...