Lemon squash is a keeper. If you live in an area with squash bugs grow this plant! It's still going strong and I'm getting at least 1-2 squash per day.
I've also had a ton of success with Beurre De Rocquencourt Bush Wax Bean- great producer and I've been harvesting for at least 4 weeks. My other "kitchen king" and purple beans pale in comparison.