How to stop pasta sauce going dry in the oven

[dancingmarshmallow]

Making a pasta bake using Philadelphia (3 small tubs) with chicken and bacon. In my head this sounds gorgeous but how will I prevent my 'sauce' from drying up when it's in the oven? Do I add milk?

Add milk and cover with foil.

Its cooked pasta you’re putting in the in the oven right?

Cook it all on the hob, add milk/cream then put it in the oven
Sauces thin out when baking them