I thought of something easier, that can be done by new members too, and also if you eat outside. It's based on a prayer to Lord Zeus, that you can also do mentally.
"O Lord Zeus, O Father, I humbly ask You to bless this food that I'm about to consume, I ask You to bless the food of your Initiated.
May this food only do good to me, may it give me strenght and wellbeing.
Hail Lord Zeus!!!"
What are you experiences? Did you noticed differences in taste? How it felt after a few hours?