I covered the bratwurst with water and simmered for 10 minutes. Then I drained the water and added a little olive oil, and sautéed the sausages until they were brown but not bursting. I poured the fat into a disposable hot drinks cup.
Sliced up the cabbage, and poured a little of the sausage fat into it, dusted with salt and pepper and a few tablespoons of water, covered with Saran wrap and microwaved for four minutes. Dinner!