Add 2 cups (300 g) of frozen strawberries, 3 kiwis (peeled, cubed, and frozen), ½ cup plain yogurt, ½ cup whole milk, and 3 tablespoon maple syrup to the jar of a blender.
Adjust the texture if needed. If your smoothie is too thin, add more frozen strawberries to help thicken it and in case the texture is too thick, add some more milk to thin it out a bit.
Pour the smoothie into serving glasses. Garnish with strawberry and kiwi and serve immediately.