Cottage cheese isn't to bad. Its like a bit bitter and sour at same time but good.
Or even try some whole wheat bagels with cottage cheese. Eating carbs like bread isn't bad if you work out well.
Edit: Try drinking some hot tea as well with honey. I am not no expert in nutrition but you can also get light wheat bread. Tell you truth I don't even know why I am posting here. I do know that as long as I drink water and work as hard as I want(in the regions I want fancied) I can gain it. Oh stay away from sugary cereals. Fruits containing sugar is a better alternative.