½ cucumber
1 cup spinach
½ beet
2 celery sticks
2-inch piece zucchini
½ cup pineapple
1-inch turmeric
stevia to taste

Wash and dice everything. Place them in a blender and blend until well ground. Add stevia to taste. Drink immediately.

Cal: 160 - P: 6 - F: 0.3 - Cb: 35.4

You can replace it with a fruit or portion of fruit, if you have fruit in your plan. Or for a whole wheat bread or rice cracker, if you have bread or chicken in your plan.
If you don't want to use it as a replacement, you can add it to your plan without replacing anything, one day of the week at your snack or lunch