Urthdigger's recommendations are good.

La Noscean Toast is ideal for PLD as it's the highest level +Parry food you can get before going into the double-star foods (which have stat requirements so high that they may likely be a downgrade from toast). For DRG, the foods I would recommend at the 45+ Level range are Buttons in a Blanket (High +Determination and Low +Crit Rate) or Deviled Eggs (High +Crit Rate and Low +Acc). Generally you don't need Accuracy enough to eat the accuracy-focused Freshwater foods as long as your gear is up-to-date.