If you want to order the scrambled egg and tomato, you can say

A、Lái yí ɡè Xīhónɡshìchǎojīdàn来一个西红柿炒鸡蛋。;

B、Mǎi yí ɡè Xīhónɡshìchǎojīdàn买一个西红柿炒鸡蛋。;

C、Mài yí ɡè Xīhónɡshìchǎojīdàn卖一个西红柿炒鸡蛋。;

D、Chī
yí ɡè Xīhónɡshìchǎojīdàn吃一个西红柿炒鸡蛋。