The day before the Turkey tour began a tour member told us a guide associated with Rick's tours was going to take people around Istanbul for a day to sample restaurants and street food. It was a great experience and a good meal together with other tour members before we got started the next day. But we only heard about this by chance in the hotel lobby. So:
Is there a possibility of such a foodie tour before the Spain in 14 days 4/8/27 - 4/21/27 tour starts in Barcelona?
I've done more than a dozen RS tours, and have never heard of a pre-tour food tour.
I have, however, often arranged to join a food tour on arrival in a tour city. That might be your best bet.
I believe that the foodie tour in Turkey is unique in that it is run by SRM Travel, Rick Steves’ partner in Turkey. (I took it and it was fun and delicious.). However, if you want a food tour before your RS tour, there are many companies that run excellent food tours all over Europe. Here are two of them:
Eating Europe: https://www.eatingeurope.com
Secret Food Tours: https://www.secretfoodtours.com/
As noted the Turkey tour has a special pre-tour foodie tour offering, which if it is offered for your tour is specifically noted in the pre-tour information provided when you book the tour (it is kind of buried in there). You can look through your Spain tour info just to double check if there's something extra offered.
In addition to the tour companies already mentioned, check out Culinary Backstreets.
One more company:
Devour Tours: https://devourtours.com/
