I love Church Brew Works! As a native morgantowner, everytime we have guests from out of town, we feel the need to do a Pittsburgh day and inevitably end up here. Of course it has the coolness factor of being a converter church, but the food is pretty tasty too.
I suggest with going with one of the pizzas. They are large enough for 3 to share (10 slices - I think) and our favourite is the mushroom. Of course, they also have an amazing beer selection. If you can't decide (which I never can) try the beer sampler. Its HUGE (I think its like 8 sample as opposed to your usual five). My favourite out of the lot was the Christmas blend, which was gingery but not sweet.
Dont forget to take selfies of the giant stainless steel vats of beer at the "altar".