I wouldn't take pasta as it's cheap in Tansas. You can check prices on the Tansas website on
www.tansas.com.tr and click on Current Insert, to see whether its worth taking certain foods with you, or buying there.
We tend to take sandwich fillers which we
transfer into small plastic takeaway containers instead of in their glass bottles, to cut down on the weight. We take salad cream as we haven't seen it anywhere and we often eat a salad lunchtimes (I really miss the tomatoes!). We also took a number of other things which were left over at the end of the holiday as we found so many takeaways that were so reasonable, such as Alin's (a roast chicken and a 2L bottle of coke 9.9TL) and Kardelin that we just didn't eat them. We always take our own T-bags as we prefer them but buy the coffee there as even though its a little more expensive you've also got to watch the weight restrictions as taking food with you could mean you have to pay extra at the airport, which defeats the object. Any food we take with us we wrap in freezer bags, just in case of leakage. Provided that your food is in your suitcase there won't be a problem. We also take toaster bags and buy the "tost" cheese which I think is Turkish for sliced, to eat at lunchtime.
As our baggage this year weighed 20kg without the food, we checked the weight of the empty suitcases which were 5kg each. We then bought holdalls which weighed 1.4kg which had the same capacity as the suitcases. If you want to take food out with you and you're close to the limit then they're an excellent buy as we only paid £8.99 each but we put luggage straps around them for extra protection.