See a letter from Ellen about the donation campaign. Your help matters!

How much Beef and Chicken Kabobs for 30
Making my company dinner for 30. They are wanting beef and chicken Kabobs with vegetables and some just vegetable kabobs. How much beef and chicken should I buy for 30? and I am making rice, grilled corn and a 3 bean salad.
( would buy 1 pound raw boneless beef per 3 plus 1 pound raw boneless chicken per 5. People do like kabobs!