Don't see why not.
Word of warning though - cooking anything straight from frozen gives worse results than if you defrost it then cook it. Especially noticeable with fresh meat.
sardines
Salted sardines can be used for eating on sandwiches, cold salads and crackers. The sardines should be soaked in fresh water to get rid of the salt because it is a preservative and not meant to be eaten.
A prime rib can be frozen, but it should be thouroughly thawed before cooking.
frozen
yes I can, all food types can be cooked from frozen.
yes just cook them slower and longer
Yes. They can be treated like other frozen fruits, peaches for instance
Yes. Sausage can be cooked from frozen.
I cook frozen brisket in foil in a slow cooker , I put smoked applewood rub on it and wrap it in foil and poke a few holes in the foil as to make a stream tent. It will slowly cook awesome!!!!! I do no believe that it make a difference thawed or frozen, however I think it makes it more moist to cook frozen as I shared above and that just a farm girls way of doing it
Yes
In a kettle
Yes