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.
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.