Questions & Answers about La tortilla de patata quedó muy buena.
Here quedar means to turn out or to come out in the sense of a final result.
So La tortilla de patata quedó muy buena means something like:
- The potato omelette turned out very well / very good
This is a very common use of quedar in Spanish when talking about how something ends up after being made, cooked, arranged, written, etc.
Examples:
- La cena quedó fantástica. — The dinner turned out fantastic.
- El dibujo quedó muy bonito. — The drawing turned out very nice.
- La habitación quedó perfecta. — The room ended up perfect.
So this is not the quedar of to meet up or to stay. It is the result meaning.