The low calorie content of zucchini casserole allows you to eat it regardless of the time of day, even late in the evening. This will not affect your weight, but you will feel full for a long time. There are many ways to prepare a casserole, so you can do something new every day and not repeat it all week. Active cooking time takes no more than 10-15 minutes. The casserole can be prepared from both young and mature zucchini. The only difference is that more juice is released from young vegetables.