I just got off an 11-day Venezia cruise (not technically a Journeys cruise), and here was the breakfast/lunch situation on the 5 sea days:
On 4 of the sea days, Sea Day Brunch was offered. No separate breakfast was offered in an MDR.
On one sea day, breakfast was offered in one of the MDRs and there was a separate lunch menu after breakfast was done. It was Mexican-themed.
On all 5 sea days, the other MDR offered a lunch menu that I thought was a full step up from what they typically offer for lunch at a Cucina del Capitano. It had 3 salads/soups, about 5 pastas (including a really delicious spaghetti carbonara), and two dessert selections. We at lunch there 3 of the 5 sea days.