But I don't cook and my house is too small!
No worries! One person agrees to host the first meal. The host provides the main course, which can be something as simple as a pizza. Guests bring the appetizer, salad and dessert. The important part is to have time to socialize. Don't burden yourself preparing a fancy meal. That is not the intent. If space limits you to dinner for less than 8, that is fine too.