How early can we arrive before the Nov. 15 Michelle Obama event? Are their eating venues inside the forum?

The earliest I've ever been is 2hrs and there is food and drinks inside the gate. If you get there too early then there are plenty of options to eat nearby.

It depends a lot of people start to try in line at 12p in the day but that's my experience. And there is drinks and foods

If I'm correct its 2hrs prior 2 doors opening early