That's the beauty of crock pots. Pretty much any sort of odds and ends can go in and a good meal comes out. Meat + veggies + liquid + spice = dinner
If you're going to cook out of a crock pot often I suggest always having the following on hand.
celery/potatoes/carrots/onions/peppers
cheap cuts of meat like pork shoulder, chuck roast, chicken thighs, etc
canned broth/stock
selection of cream soups like cream of mushroom, cream of chicken, cream of celery
Rotel tomatoes
Dry onion soup mix
Stock up when you find decent sales. If you've got those staples on hand you can cook 90% of crockpot recipes at a moments notice without needing to shop.
lol, when the casserole soups go on sale, and I mean a really good sale it's nothing for us to buy 20-40 of each.
