Feeding scheudle

Little man is almost 15 months. We have just gotten him to 1 nap with a 5 hour wake window in the morning. So he’s up at 7:00 and has a cup of milk. Breakfast at 7:30, 7:45. Nap is 12:00-1:30. I need to ask when you ladies would do lunch, before or after nap? Hubs thinks eating at 11;00 before the nap is no good. Is waiting until 1:30 (sometimes 2:00) bad though. I would give him a small snack before nap if this is the best way.

Any advice welcome please!!!