your on the right track bro...
for what your trying to do, you just need to get adequate calories and protein throughout the day... don't look at carbs as your enemy either, they are actually your friend here too, just don't go nuts
i would get 2 whole eggs at breaksfast and 3 egg whites... get bobs red mill oat and wheat bran... take 1 serving of each, add some raisins, a scoop of whey, a serving of peanut butter and mix them all together... also, 1 serving of greek yogurt...
i buy my greek yogurt by the kilogram instead of the little cups... i mix 4 scoops of whey and then i like to add some grapes but you don't have to do that... weight out 1 serving each time you have it...
that's a nice start to the day...
get in a snack in between breakfast and lunch... perhaps a protein shake, an apple or grapefruit and some nuts (cashews, pistachios, etc... )
for lunch go with 8-12 oz. of fish or chicken, 2 servings of green vegetables and some rice
get another small meal in between lunch and dinner... 2 cans of tuna and a protein shake
then for dinner alternate a meat, poultry or fish... steak, chicken, pork loin, pork chops, veal, venison, ground hamburger, fish, etc... 2 servings of green vegetables and rice or sweet potato
then later night snack... 2 more whole egss with the oat and wheat bran and a scoop of whey in the oat and wheat bran
This will add you size, it won't be dirty and you won't feel bad either...