Both zucchini and yellow squash-- either straightneck or crookneck-- are summer squash, with a similar flavor and texture, and CAN be interchanged in recipes.
My family's favorite quickbread is Lemon Zucchini Bread- so today we got Lemon-SummerSquash Bread. I no longer shred zucchini -or this squash- for recipes, but puree it instead. No more strings. As a bonus, if I'm freezing some for later use, the texture does not change when thawed, unlike shredded squash.
AND, if you're pureeing the squash, you can have the blender (or food processor) mix all the wet ingredients for you.
This bread is great for breakfast.
The recipe is found over here, though the blender method is below.