I'm confident that I can handle even the spiciest foods.
I was surprised to find that my boss liked foods that were even spicier.
「私が一番辛い食べ物に強いって自信がある」= I'm confident that I can handle even the spiciest foods.
「ボスのほうが辛い物好きで、びっくりしました」= I was surprised to find that my boss liked foods that were even spicier.
ボキャブラリー
confident = 自信がある
can handle = 食べられる
spiciest foods = とても・もっとも辛い食べ物
surprised = びっくりした
even spicier = もっと辛い、それよりも辛い