They had me at homemade sausage gravy. Seriously, my two biggest complaints about diners or breakfast joints are canned gravy and canned hash. Both are not difficult to make, and make such a huge difference.
Eggs N'at is not a huge place. Seating is a little tight, but that's okay. They turn tables pretty quick and have high volume in a short period with a closing time of 2 p.m.
I ordered a pancake, two eggs over medium, ham, a biscuit and gravy and a large chocolate milk. My bill was $12, which is nothing for what I ordered. Pancake was great. Had those crisp edges I love, and the syrup didn't taste store-bought, though I did not ask. Eggs were perfectly cooked, which believe it or not is something NY diners tend to struggle with, and the ham was a nice portion with no fat on it.
I come into Pittsburgh on business quite often, and am so glad I found this place for when I stay near the airport. I will gladly walk here for breakfast every day I'm here.