Prepare the cabbage. Melt the butter in a frying pan. Add the cauliflower florets and fry for 5 minutes.
Make the casserole filling. Beat the eggs in a deep bowl, add salt to taste, add mayonnaise and beat. Add the eggs to the cabbage and mix thoroughly.
Bake the casserole. Place the cauliflower florets with the filling in a baking dish. Sprinkle grated cheese on top. Place the baking dish in the oven and bake the casserole for 30 minutes.