Ok well the cool option is only available in v5. You can get idea of it here:
That link covers inventory setup but it also teaches you some nice advanced usage of Order Tags and building products that use Order Tags for parent product. That is not an exact method but you could deduce various ways from it.
The other method is like they said just create a recipe with the set products in it for that set meal. If no options change in the meal then there is really no reason to set them up separately