I put 1 really ripe banana, about 1/2 cup of mixed fruit (strawberries, pineapple, whatever you have that needs to be eaten!) and then fill the sandwich sized back the rest of the way with spinach. It’s about 1.5 cups or so. Smash out all the air and freeze! You don’t have to make a ton of these at once, I just make them as I have the ingredients.
You’ll end up with a nutrient packed shake with about 15 grams of protein to kick off your day right and hopefully, way less waste in the produce department!