I found a really amazing looking pin on Pinterest for make ahead slow cooker meals. I had to try it. I read up on it a bit and decided to blanch my veggies to keep them from getting too mushy.
I made: two bags of potatoes, carrots, mushrooms and onions to go with just about anything, a bag of sweet potatoes, carrots and onions to go with a frozen pork tenderloin, a bag of peppers, onions, mushrooms and bussel sprouts to go with beef, a bag of seasoned potatoes, and a bag of seasoned potatoes and carrots. And I had extra cut onions, so I froze those, too.