Place the bananas, peanut butter, greens, and milk into the blender.
Blend on high for about 30 seconds, until the mixture is smooth, thick, and velvety, with no lumps remaining.
Taste the smoothie and add honey or dates if you'd like it a touch sweeter. Blend again for a few seconds to combine.
Check the consistency; it should be creamy and vibrant green or brown, depending on your greens. If it’s too thick, add a splash more milk and blend briefly.
Pour the smoothie into glasses, and optionally garnish with a few crushed peanuts or a drizzle of honey on top.
Serve immediately for the best flavor and texture, enjoying a creamy, nutrient-rich drink that’s perfect for any time of day.