How to host a party for too many people?

[Sorryforthechange123]

I love hosting dinner parties. I guess if I could pick any job I could be a professional dinner hoster! Anyhow... I guess I didn't think it through very well. I invited my colleagues for dinner and drink - there's 15 of them. The problem is my table can sit maximum of 6 people

What would you do in this case? Should I make it a buffet style and let people "mingle"? The kitchen/dining/living room is an open space so possibly some of them could sit at the table (6) some of them could sit on the sofas (5)? I would just float around.

Or was it generally a big mistake and I should gracefully back out?...

If you don't think it's a totally terrible idea any food/drink suggestions would be very much appreciated!

Something you can eat from a bowl? Chilli or curry maybe?
Having too many people is definitely better than too few!

If you have the space I'd borrow trestle tables so they can all sit if you've invited them for "dinner". Otherwise I'd change it to a drinks party and do buffet/nibbles.

I am not sure if additional tables would fit in a flat...

Another thing I realised - I don't even have enough plates or glasses! I really didn't think it through, did I?...

Change your vision. Its not a party anymore. Its a soirée. Plastic glasses, bowls for serving, extra napkins...lots of wine and spectacular puddings.

Most supermarkets will loan you wine glasses for free.
You don't even have to buy wine at the same time.

Yep, soiree, or supper

Go,for a drinks party. Two hours 6- 8 is usual (but often flows over into music and music at ours). Serve champagne ideally but otherwise wine or prossecco/cava. Canapes - decent ones fill people up 5-7 pieces per person plus olives, nuts,
Don't need extra crockery, no real messy washing up. Prepare ahead. People love good canapes as something for everyone and no pretence of liking something you dislike.

Majestic hire glasses as do Waitrose. Paper napkins.

Asda do cheap glasses/plates. (They're actually very nice, we have tried all of the 'basic' brand supermarket dinnerware and imho theirs is the nicest.)