The glass dish I use is oblong, about 6" wide x 10-1/4 long" measured inside. This easily holds the 4 cups of liquid which is about what this recipe turns into.

You can use whatever combination of milks you want to use. I never use Carb Countdown milk to drink, but it's really good in this recipe because I can't tell the difference from regular milk...and it's low in carbs.