The current food word is "keiki"/"cake." It's been "cake" since 2016. Will it still be "cake" in 2018? No one knows. What I do know is that "pan" has become the newest repeated obsessively food word, which is Japanese (and some Latin languages) for "bread." That one may take over in 2018. So far "keiki"/"cake" is the hot word in 2016/2017. It's like a simplified "hottokeiki"/"pancake." I've also been communicating in Japanese so much that I can't help but talk in it in 2017. We'll see how much communication I do in 2018 in Japanese.
I'm into pancakes now. Cheese is so 2008. I was into tacos briefly during 2013, but that phase was cancelled out by pancakes, the phrase of 2011, which stuck around to now through 2015. Some other food word may take over in the future, but pancakes are the current hot item.