With bananas I make a banana milkshake when they are too soft to be eaten. With cilantro bunch, I keep some for garnishing rest I make chutney. Simple recipe of cilantro, garlic, green chilies, slices of fresh/frozen raw mango or even raw mango powder and salt etc goes in blender and out comes the chutney.
I (not quite sub-consciously) ensure I always leave some bananas to get to that 'black, but not crushed' state - solely to make milkshakes from.
I give myself a pass on the calories, as I'm "being green and eating my 5-a-day"