The yield is only estimated depending on the size of your patties although you should get anywhere from 12-15 patties, these may be shaped into about 3-inch rounds instead of a log-shaped, I prefer the log-shaped they seem to cook better. Plan ahead the mixture needs to chill for 3 hours or up to 24 hours before shaping. I sometimes add in 1 cup (or less) cooked rice also but that is optional. Two pounds of fresh spinach stems removed, cooked and chopped can be replaced for the frozen spinach, make certain to hand-squeeze out any excess moisture well before using in the recipe.