It doesn’t influence American cuisine very much. Most Ethiopian food is fresh and homemade, with lots of flavor. It doesn’t compare to most american food tastes. It does compare to other african cuisine and some spanish / mexican foods as they both enjoy spice and flavor.
In Ethiopia they are very fond of stews and a solid, but spongy bread called injera. The stews are usually called wat (wot). This food is eaten by taking the injera with the right hand and scooping some up with the bread.