Put the potatoes and cabbage in the LARGE cooking pot and cover with water. Cook until water starts boiling and add macaroni or noodles. Add canned tomatoes and one can water. Stir frequently to keep from burning. Drain water from canned vegetables and add to mixture. If it's too thick at this point, you may add a little more water. After it starts to boil again, add onions.
Trim fat from corned beef and cut into chunks. Add to mixture. Stir, lower heat and simmer until all flavors are mixed and soup has thickened.
This makes very good leftovers and may also be frozen.
Serves a bunch…