Pizza ok for reception?

My fiance and I are having a wedding with 100 guests. It's a semi formal event. We have been looking for catering and he's pretty picky on food. He doesn't like BBQ and I don't want burgers and hot dogs at our wedding and were not wanfing ti go all out, those were our cheapest options around here and not everyone will be happy with the menu. I was talking to my friend and she said who cares what people think or like choose your guys favorite foods, Its your day not theres... which she is right. And we both are huge pizza fans. So we decided on pizza but now I'm thinking how to serve it how am I going to make sure that we don't run out on pizza for the tables with out hiring people or finding some one to serve.