wa'alaikum as'salaam,
and yet many Muslims do and will go to those places. Better they know what to say to try to minimize the contamination then telling them "don't go! don't go!"
Sister how can they minimize contamination when all of the ingredients are already cross contaminated with pork and meat? That doesnt make logical sense. I know many Muslims who have worked for Dominos and Subways and they told me specifically that all of the ingredients are always contaminated despite the management trying to reassure vegitareans by saying that different cutlery is used.
Once I even went to Dominos and the Muslim brother who worked there said to me: "Brother I advise you not to eat in these places as the ingredients are cross contaminated by pork". One brother who used to work in Gregs even once told me that he has seen many a time non Muslim workers using the same cutlery as pork and meat products as the vegitarrean ingredients. He simply told me that non Muslim workers dont care thats why cross contamination is so prevalent in non Muslim restaurants and takeaways. Ive seen it myself once when I went to a non halal Subways and I saw the lady who was making the sandwich use the same glove for several sandwiches. She only took it off once I pointed it out.
So the simple fact is that rather than making illogical statements about using different cutlery when the ingredients are already contaminated. We should raise awareness among Muslims to abandon such places. Simply because non Muslim workers will never take care to ensure cutlery plates and ingredients are kept seperate because they dont care as it doesnt make a difference to them, but as Muslims we should care and avoid such places where we know ingredients are cross contaminated with pork and meat. We should have taqwa over such matters, they dont.
So we should not encourage our brothers and sisers to eat in such places rather we should warn them not to go and eat food that is clearly cross contaminated with pork and meat. Consider the following hadith regarding doubtful matters:
On the authority of Al-Numan bin Basheer, who said : I heard the messenger of Allah say : "That which is lawful is plain and that which is unlawful is plain and between the two of them are doubtful matters about which not many people know. Thus he who avoids doubtful matters clears himself in regard to his religion and his honor, but he who falls into doubtful matters falls into that which is unlawful, like the shepherd who pastures around a sanctuary, all but grazing therein. Truly every king has a sanctuary, and truly Allah's sanctuary is His prohibitions. Truly in the body there is a morsel of flesh which, if it be whole, all the body is whole and which, if it be diseased, all of it is diseased. Truly it is the heart." narrated by Bukhari and Muslim
Then let us not make the doubtful as permissable.
And Allah knows best in all matters