Grease bottom of casserole dish with bacon grease.
Thinly slice cabbage and spread 1/2 on bottom of dish. Next thinly slice potatoes and spread 1/2 over cabbage. Crumble 1/2 of hamburger over all. Repeat cabbage, potatoes and beef then cover with milk.
Cover with aluminum foil and bake at 350°F for 45 minutes.