You can but they get grainy when you thaw them. It works better to only cook them partially and then freeze them. When you thaw them you can finish the cooking and they aren't so grainy. A potato dish like scalloped potatoes or mashed potatoes have the same problem. The freezing process separates the water from the potatoes and makes the texture grainy when they are thawed. But it's not as noticable in a prepared dish as in just plain potatoes.
Yes you Can just Stick it in the Freezer
Yes, you can freeze a cooked beef joint.
You can safely freeze sausage before or after it is cooked.
Yes you can, but it will take longer to cook as the meat is frozen.
You can safely freeze dressing before or after it is cooked.
Yes, you can safely freeze cooked kebab meat one time. Once thawed, it is unsafe to refreeze any cooked meat.
Check this article out abouting freezing potatos. http://www.thriftyfun.com/tf000995.tip.html
Yes, you can safely freeze stuffing, before or after it is cooked.
yes
Yes.
You can pretty much freeze any cooked food. That is the advantage of freezing. It is the best way to store foods.
Yes, you can safely freeze dressing (stuffing) before or after it is cooked.
Yes, you can safely freeze soup that contains cooked ham.