Not sure if it’s in your list, but the hot dog places were immensely popular and quite cheap when we were there a few years ago. Bæjarins Beztu was very tasty. Ate hot dogs with crispy onions and remoulade A LOT when we got home to recreate them. Even if you can’t take them with you during the day tours I’d recommend trying it out anyway.
Not sure if it’s in your list, but the hot dog places were immensely popular and quite cheap when we were there a few years ago. Bæjarins Beztu was very tasty. Ate hot dogs with crispy onions and remoulade A LOT when we got home to recreate them. Even if you can’t take them with you during the day tours I’d recommend trying it out anyway.