我早饭吃鸡蛋和牛奶的英语表达方式是 "I had eggs and milk for breakfast."

这是一种通俗的表达方式，常用于日常生活场景。

以下是一些例句：

"What did you have for breakfast today?"
"I had eggs and milk for breakfast."

"I'm feepng peckish. What do you recommend for breakfast?"
"Why don't you try eggs and milk? It's a classic breakfast option."

"I'm trying to eat healthier. What's a good breakfast option?"
"Eggs and milk are a nutritious option. You can have them boiled, scrambled, or even made into an omelette."