Add all of the ingredients to a blender or bowl. Blend until smooth. Taste for sweetness, and add more honey if you like. For a thinner smoothie, add a splash or two of water or milk.
Notes
Don't add ice. If you add ice to a smoothie, it will be icy and eventually will water down the consistency - which I don't like. If you would like a colder smoothie, use frozen bananas or blueberries so that you have a smooth consistency without iciness.
Add more berries. You can easily riff on this basic smoothie recipe by substituting other berries, or make a mixed-berry smoothie with a combination of berries.
Add a little milk or water. This is a thick smoothie, and I like to add a splash of milk, non-dairy milk, or water to thin it out if it's too thick to pour.
Try maple syrup. If you don't want to use honey, use maple syrup!
Add nut butter. I love to add peanut butter or almond butter to my smoothies for extra protein and creaminess. You can also try tahini, sesame seed paste, one of my favorite flavor additions.
Or seeds. Chia seeds or flax seeds will add a nutty crunch.
Other additions: You can stir in a pinch of spice, such as ground cinnamon, ginger, or cardamom, to add a warming flavor. Or, try a little vanilla extract or almond extract.
Double the recipe. This recipe makes enough for two smallish smoothies. You can enjoy it as one larger smoothie, or double the recipe (and keep it as a big smoothie, or share it).
Make it vegan. Swap the Greek yogurt for your favorite non-dairy yogurt of choice and omit the honey or use maple syrup.