Just reading some reports on Facebook -
Barcelona is open in the morning and has (along with coffee) pastries, fruit cups, yogurt and some grab/go juices, water, etc.
Reports that Rix Bar/Grill breakfast is good! Also, not for breakfast, they have something called Wachos - waffle fries with nacho toppings - and they look so good. You can get to go at the restaurant, but need to actually go there to order, no mobile order.
Three Bridges is still getting great reviews and the food looked really good!