I came across this fascinating website that talks about the history of Cameroonian food, and it also showcases recipes. Here is some information:
"Many staples of the Cameroonian diet came from the explorers of the New World (the Americas). The Portuguese arrived in Cameroon in 1472 and brought with them such foods as hot peppers, maize (corn), cassava (a root vegetable), and tomatoes.
Other Europeans settled on the Came-roon coast in the mid 1800s, with the British arriving first, followed by the French and Germans. The French influence is reflected in the presence of some foods, such as omelets and French bread, as well as in the preparation of some dishes; however, for the most part, Cameroonians continue to prepare their own traditional foods."