Yes, I'm ready for that situation since this is a common daydream 👍🏻 I can drop 'em right into my ongoing campaign, plenty of stuff for them to do and explore there, and I have many ways of making characters that are all compatible up with the big 5e game down the line. From pregens or the Essentials Kit to something in the middle like Dungeonesque and if they're really non-nerdy and just wanna dip their toes, I have my own searcher. I don't use it if I think they are serious about getting into full D&D but it's nice because it only has two stats and those are both derived straight up from level. (So in short, if I think they're future nerds I'll use the Essentials Kit and if I think they're pretty set in their non-nerd ways I'll use my searcher class, and it's no big deal if I guess wrong because it's easy to switch over.)

I run theatre-of-the-mind so we're ready to go. If they are looking for more of a dice&minis type thing I have that Castle Ravenloft board game that came out in 2010. Easy to learn and plays in an hour and teaches basic attack rolls & hitpoints stuff and is still called "D&D".

Although I wouldn't hesitate to refer to Shadowdark, Svärd & Svartkonst, or any other OSR game as "D&D" either. There's no trademark lawyer in my living room. 💁🏻‍♀️