You could also try one of the C. moschata summer-squash hybrids from Kitazawa. I grew Teot Bat Put this year (I was looking for Early Bulam, but the nursery where I got the seeds had only the former.)
http://www.kitazawaseed.com/seeds_summer_squash.html
It was delicious and not rampant -- but I didn't give it much room. I grew Tromboncino at another garden and it was a monster! A week before frost hit, it had probably 10 little squashes on it!