I have always held that if Peter wants better dinners the only way he would get them was if he started cooking himself. After 13 years, he finally realized I wasn't bluffing. Actually, for Christmas this year he gave me a very thoughtful gift: 3 cookbooks. From which he would choose dinners to make. The first week he took Elise with him to the store. After 5 calls home asking if we owned ingredients I had never heard of, he came home and they made a delicious dinner and dessert (on a sidenote, notice the 3 boxes of soda stacked next to Elise).
Thus was born a new tradition in our home. Once a week, more or less (sometimes less, never more), Peter and one of the kids choose a recipe and a dessert, go out and buy the ingredients and make it for the family. I get a break, the kids get one on one time with Dad, and Peter gets a meal that requires more than 3 ingredients to make. It is a win-win for everyone.
He's done it 2 times so far and they have both been excellent (and I now know some nonalcoholic substitutions for rice wine, have cinnamon sticks in my spice cabinet, and spinach has made its first appearance in my fridge).