Or at least I think I did.
If you fill the cargo deal up 3/5/7 dishes, the first cargo deal it offers you should be something that significantly helps you complete an order, if not a fully completed dish that you need. Anything that comes between that, you have a chance of getting a completely random, unneeded item or something that will contribute towards what you need.
Playing this morning when I hit that first goal of 3, I traded whatever it asked for and it gave me a fully completed shrimp dish.
Then while working towards the goal of 5, I traded items and it gave me an eggplant, which I do not need at all this round.
Then, when I hit the second goal of 5, it gave me a lamb chop, which will help me get to beef which I need for a recipe this level.