When I make some dishes for Christmas I double the amounts and freeze some for future dinners. One of them is veggies for fish that I make with potatoes. The only part that I freeze is the veggies, potatoes and fish is always made fresh.
1 cabbage, shredded
3 leeks, well cleaned and sliced thinly
5 carrots, shredded
1 celery root, shredded
1 can of tomato paste
Salt, pepper and few bay leaves,
Butter for frying.
With some butter fry all the veggies with the bay leaves until they get softer, add salt and pepper and tomato paste, mix well.
For the fish I always use Basa filets because they don’t make your house smell like fish.