Ohana Breakfast is currently my least favorite sit down dining option. The juice is really good, but the meal itself defines lack of options. There's no buffet to visit - you have to rely on your waiter to bring you a platter of food, and there's not much to choose from (Bacon, Sausage, Waffles, Potatoes, Scrambled Eggs, Fruit... that might be it). It you're looking for any healthy food options besides the fruit you won't find it. I'd rather eat at the Disney Jr breakfast in HS if that says anything, just to get some variety in the food options.
I don't recall what the Dinner gives you, but I do remember seeing the MK fireworks go off in the distance while we ate which was kind of neat.