First game help

Hello all,

My wife and I have tickets to the Senators game this Saturday against the Ducks. This is our first ever Senators game (or NHL game in general) so we'd like to ask some noobie questions:

1. What time should we be looking to arrive? We are driving in and have parking booked in Lot 4.

2. What time should we be in our seats? The game starts at 1 pm, but does something happen before then?

3. Are the food options there good for lunch?

Thank you in advance. If there is a general FAQ somewhere that answers all of this, please let me know.