Dinner is much expensive than lunch or breakfast. Thus having a day time wedding will favor your budget. Day time wedding would be very apt for a Sunday wedding unlike evening wedding of Friday. Best options would be to have a breakfast wedding that. Or even have a brunch or appetizer only wedding where you dont have to worry about serving an entre. If you intend on serving your wedding day crew choose a less expensive but sumptuous meal for them. You can also have a barbeque wedding where your guests can prepare their own entre and save you a great deal.