Thank you for the question, “What would the meal be like in Genesis 1:1-8? How long might this meal have lasted? What would be brought first? What prayers would be said, and how would the meal end?”
I was going to pass on this question since I wasn’t sure it was a serious question or not, but I want to give the writer the benefit of the doubt.
As one reads Genesis 1:1–8, man wasn’t created until the sixth day unless one was referring to Genesis 2:1–8.
As one reads the account of Genesis 2, one can conclude that it was a vegetarian diet. Adam and Eve were prohibited from eating meat. Thus their meal may include fruits, vegetables, and nuts. Since one doesn’t know what other trees were in the Garden of Eden except for the Tree of the Knowledge of Good and Evil and the Tree of life, the answer is only conjecture.
Did God point out to Adam and Eve what the fruits were on the tree, the berries, or nuts? I would imagine so since God spoke to them and they would take a bite of them or gather one or two in their hands and explicitly telling Adam not to eat of the Forbidden Fruit. Adam and later Eve, didn’t necessarily have to sit down around a table for their wasn’t one. It would be like a picnic. One can imagine that they would share their exciting experiences of tasting something new with each other. Each of them would gather a few and bring it to the other person to share this experience.
Did Adam and Eve prayed as we do today? In my opinion and it is only a conjecture that they didn’t have to pray. They had a heart of gratitude and awe of God’s provision for them. There was not set time for meal for there wasn’t time as we calculate 24 hours. When they woke up from lying on the grass, they went out and gather their food or ate what was gathered previously. They ate whenever they wanted and they were unlikely to be glutton.
In the Garden, God came and talked with them before the Fall. How long was that time period before the Fall is unclear. Did God share the first meal with them? I would like to think so. Perhaps when one sees Adam and or Eve in heaven, one can ask them those mundane questions, but I imagine that would be irrelevant at that time. I don’t imagine anyone asking us what we ate each day or our favorite food while we one earth. Our questions will go beyond food, sports, the current events for we will be spiritual beings with spiritual values.
SUMMARY: I would imagine God would have been there when he shared what the fruit trees, vegetables and nuts to Adam and Eve while they tasted it. They would have been delighted by its wonderful taste and praise God for the new sensations that they felt as they bit into the variety of food in the Garden of Eden.
For more perspectives: