
I'm guessing that Minjae didn't like the cream pasta and the dad said that he likes them.... I think he does it in purpose. ( ̄へ ̄)

he wants the dad's approval in all things so he agrees with him even when he doesn't like something, like the meal.

I wouldn't be surprised. Especially considering what the dad does in some later chapters.
Hahahahahaha.... OMG!
Their expression is priceless!