This phrase is informal, used more in casual conversation than formal writing. When I told Jake it was just changing a tire, he made a meal of it.
Pro Tip 2/3
Negative Connotation
It suggests someone is unnecessarily complicating things, often with a sense of frustration. The assignment was easy, but she made a meal out of it.
Pro Tip 3/3
Metaphorical
This a metaphor, comparing a simple task to an elaborate process like cooking a big meal. This is a quick cleanup, not a three-course dinner—don't make a meal out of it.