When you have a minute, read my review on the Dream's April 10, 2010 sailing. I talk a lot about food, ha!
Yes, there are lunch options available near/at the Ocean Plaza but not on sail day. The dining venues open on departure day are: Crimson Dining Room (Deck 3 Fwd.)and the Gathering which includes the grand buffet, Mongolian, Burrito Bar, Pasta Station, Indian Tandoor, The Grill, Deli and Pizza. On the second sea day, the Lanai Bar-BQ will be open (on the open deck outside the Ocean Plaza, Deck 5), and a salad bar and turkey wraps close to the Patisserie in the Ocean Plaza. Also, the sushi bar, Wasabi, opens at 5:00 p.m. (also on Deck 5).