well it depends what ingredients you put into it and the quantity that you have. Apart from that i would say about 200-300 calories in an avergae serving of pasta bake.
There are: approx 608 calories in 1 pound of cooked fresh pasta approx 704 calories in 1 pound of (enriched) cooked pasta approx 560 calories in 1 pound of (enriched) cooked whole wheat pasta.