100 years

Juergen is 51 and I'm 49 years old. We want to have a 100Th birthday party together. I don't have the date yet, but I'm working on a menu for a small crowd of 100 or so people. I was thinking chicken and rice, beans, salad, fresh fruit, a corn zucchini casserole, tortilla chips, salsa and guacamole and a desert of some sort. Maybe I'll even ask some friends to bring desert. I like the Mexican direction. I wanted dishes that are not too hard to cook, and easy to cook for large amounts of people. What do you think? I also need to be able to buy the food in Germany. I have to keep that in mind.

This is from http://foodwishes.blogspot.com/

Chicken and Rice

Ingredients:
This is for 6 people
1 whole chicken, cut in serving pieces
salt and fresh ground black pepper to taste
2 tbsp olive oil
1 onion, diced
1 tbsp cumin
2 tbsp smoked paprika
4 cloves garlic, sliced thin
1/3 cup sliced green olives
2 tbsp capers
1 tsp dried oregano
1/4 tsp cayenne pepper
1 red bell pepper, diced
1 green bell pepper, diced
2 tsp sugar
2 tsp kosher salt (or 1 1/2 tsp fine table salt)
1/4 cup tomato paste
2 cups white long grain rice
4 cups chicken broth

so this recipy times what? 15 or 20? I mean if you are cooking for 100 to 120 peple?