Calorie reduction through reduced food intake is key. To do this, w need to redifine the meaining of food. Calorie reduction only hurts for a short while. The second and third days are the hardest, when the brain adjusts to buring fats. After that, we paradoxically begin to feel better despite the fact that we undereat.
Most families have just a few favorite dishes.
Make up a rotating menu. Rotate the menu, where every Monday you have the same meals, every tuesday the next set, etc. Preplan the total calories for the week, such that everyone in the family will reach their desired weight. This is one way to preset your calorie intake. Remember, put it in writing.