We don't know if the kids like raw fish. (prepare grilled fish - too - in case)
We will prepare grilled fish, too, in case they don't like the raw one.
I am not sure if I have enough money. (go to - ATM - in case)
I will go to the ATM, in case I run out of cash.
I think Gary has some food restrictions. (ask him - in case)
I will ask him, in case he has any food restrictions.
Iam not sure if they have lactose-free food there. (take - baby's food - in case)
I will take the baby's food, in case they don't have lactose-free food.
I think we are running out of gas. (order some food - in case)
I will order some food, in case we run out of gas.