stand-up reception for 1200
What kind of foods and ways of serving work better when you want to move more than 1000 people without bottlenecks?
This requires about 100 staff... It is WAY outside amateur practice.

You need multiple main stations (about 1 for every 100 guests) pus specialty stations for carved items, etc, plus people circulating with trays. Your menu depends on your budget and kitchen/ ovens, how long the party is, etc.

Take a look at and

Usually the fee for hos deouvres partys is about $1 per "bite or item" And you have at least 8-12 items.