Put cabbage in colander and sprinkle a little salt over it. It will remove the excess water from the cabbage. Let sit for 30-60 minutes. It gives you a very crisp cabbage. In a large bowl, combine cabbage, red apple, green apple, carrot, red bell pepper, and green onions. In a small bowl, mix together mayonnaise, brown sugar, and lemon juice. Pour dressing over salad.