Sometimes I was trying to perfect a recipe, such as french fries. Sometimes, the kids wanted French Toast whenever there was a fresh loaf of homemade bread. Sometimes we ate out at a restaurant, or had take out, or were just too tired and lazy so we had sandwiches or cereal for dinner. Repeating favorite dinners happens.
Until then, be a dear, spend a buck, buy the monthly installments. You will be very glad that you did.