The phrase "handful of spinach" means a small amount of spinach that can be held in one hand.
Sentences with «handful spinach»
1 large handful spinach or kale 1/2 cucumber (cut in slices) 1 - 2 stalks celery (cut in pieces) 1 slice fresh ginger or 1 tsp. (barbararodgersonline.com)
Add handful spinach to bottom of minimum 16 - ounce container. (thefitfork.com)
4 frozen bananas 1 cup almond milk handful spinach 3 tablespoons maple syrup or sweetener of your choice. (goodnessgreen.com)