Spinach is one power-packed veggie that I love adding to regular and green smoothies. There's just 1 problem: spinach has lots of oxalates. Here's how to lower oxalates and use spinach in smoothies without steaming it every time.
Flip it over and give it a tap onto the parchment-lined cookie sheet. It should come out the same size and shape as the measuring cup.
Continue to do this until all the spinach has been used.
Steamed Spinach Smoothie "Pucks" https://traditionalcookingschool.com/food-preparation/recipes/use-spinach-in-smoothies/