Yes and no. You can prep the ingredient you need to make meal prep smoothies for the week but I don't recommend keeping fully prepared blended smoothies in the refrigerator for more than 1-2 days. But you can prep the green base in this recipe here, it will keep for up to five days in the refrigerator and cut fruits and veggies can also be prepped and stored in the refrigerator for up to five days or in the freezer for up to one month.