Quick help - would you substitute whole grain mustard with Dijon in a recipe?

[WellitsAllGoneNow]

It's an old favourite, Delia Smith's corned beef hash. I can't get to the shops as DD is poorly.

TIA

Yes - hope that helps .

I did last week and it tasted fine - it would've looked nice with the seeds but I didn't mention it and my guests didn't notice

Yes!