Birthday Parties are fun! When you're planning a birthday party, whether it's for kids or adults, plan an easy meal, pizza, bbq, regardless of what it is, make sure it's easy, because there is more to a party than just food.
If you can swing it, order it out, have it caterered, just don't fuss with it.
And remember regardless of the age of the brithday girl or boy whether they are 3 or 53, have some games. A treasure hunt, a get to know the people at the party game, have a casino table (Grown up party...) and have fun!
The more fun you are having, the more fun your guests will have!