many young devotees all over the world have big problems in being accepted as in the family as vegetarians and they are strict to eat (and offer) not exactly pure food being cooked and stored aside meat and eggs

i think that you simply have to be happy.. to chant harekrishna... and to pray krsna to help you in the future to celebrate ekadasi in the proper way

the significance of ekadasi fasting is essentially to have to put less time in cooking and more time in chanting and reading scriptures

if you do it, even if you do not eat in the proper way, your ekadasi vow is essentially fulfilled

that's my opinion