Have regular family meals. Knowing dinner is served at approximately the same time every night and that the entire family will be sitting down together is comforting and enhances appetite. Families who spend 6 hours a week together has been shown to improve behaviour in teenagers. Breakfast is another great time for a family meal, especially since kids who eat breakfast tend to do better in school. Rushing your breakfast will make for a more stressful day.
Cook more meals at home. Eating home cooked meals is healthier for the whole family and sets a great example for kids about the importance of food. Restaurant meals tend to have more fat, sugar, and salt and are meant to be for special occasions only.