I'm a newbie, but I'll add my experience so far. I usually have a protein powder drink mixed in milk for breakfast before walking out the door- sometimes I'm slow and this makes sure I get something. That's at 5:30. Then I get my husband and have a yogurt while he drives me back to work at 8:00 and takes the car for the day. Lately I've been getting hungry before lunch at noon (should have it at 11 but a shuttle route prevents timing that well). If I ride in that morning opening of 9:00 to 10:45 I end up feeling starving. Usually I wait and eat lunch right as I get off the bus at noon, finish at 12:30 or so, and then change and go riding at 13:00. This gets me back and I can have my other snack at 14:00 with no trouble. Lunch is usually a can of soup (whole can) or a 6" subway sandwich.
So I eat about a half hour before I ride, but the meals before that are both light, as is the one following.