同じ意味ですよ。identicial

That's right. You're welcome!

So they are basically interchangeable, except 晩御飯 is only really used when spoken. Interesting! Thank you Haruka.

These are the same thing. 晩御飯 is basically a spoken word, but 夕食 can be used both in writing and speech. So, the second sounds a bit more formal, but there isn't much difference.