We did both lunch and dinner on the same day. Very different menus and we enjoyed it. Since they currently don't use the Rose Garden room for dinner we chose that for lunch (you can sit anywhere, they will find you with the GPS) and we were assigned a table in the beautiful ballroom for dinner.
Lunch entrees were: turkey sandwich, steak sandwich, quiche & salad, the roast pork (more like a pot roast), and a veggie option that was quinoa salad based. There are also soups and salads for appetizers, and IIRC four cupcake choices for dessert.
Dinner entrees were: cornish game hen, salmon, shrimp & scallops in a puff pastry, steak, ratatouille, and a pork chop. More to choose from for appetizers and dessert cupcakes. The entrees come with selected sides (veggie, potato, etc.)
We had the steak sandwich and pork roast for lunch, and the shrimp & scallops in puff pastry and the thyme scented pork chop for dinner. Enough variety in the menus and the dining rooms that we didn't feel we were duplicating the experience.