Left Hungry from my Smoothie :(

brower47

Try adding a vegetable with a subtle taste that you won't notice like spinach or cucumber. The added fiber might help with making you feel fuller, longer.

Carolstone1959

Agree with brower47 re:fiber. I stopped using bananas in my smoothies since the sugar, carbs and calories were torpedoing my Food Diary. AND my smoothies just made me hungrier.
Then I started using about 1/3 of an avocado instead of the banana. I scoop out all the avocado into a bowl, take 1/3 of it and add it to my smoothie. To the remaining avocado , I add about 1 Tbsp of Bragg's Apple Cider Vinegar (to prevent browning) and do a rough mash. The mashed mixture then gets put into a ice cube tray (makes about 6 cubes) and popped into the freezer. When the cubes are completely frozen, I remove them from the tray and place in a ziplock bag that lives in the freezer. When I don't have a ripe avocado, I add 2-4 frozen 'cado cubes to my smoothie
The avocado makes it creamy but adds lots of fiber and it keeps me full for a long while. I won't lie-the taste takes some getting used to. Raw cacao powder makes it work for me. Even if I go back to adding banana, though, I'll continue to add avocado.
You could try 1/2 banana and 1/4 avocado. Unless you train your palate to enjoy less sugar you'll be tempted to add something to sweeten it. Try to taste the flavors and resist adding lots of sweet stuff. Before long, your taste buds will need less sugar than you thought possible.

Cakes2go

You might try adding chia seeds, they have great fiber in them and healthy fat that will keep you full till lunch. One tablespoon full will do it. It holds me till lunch. Also try trading the Greek yogurt for unsweetened almond milk. It'll get your calories back to where you want to keep them.