You can peel them frozen - they made to soften slightly to get the peels off. When they are thawed, they will be very mushy (good for bread). They should thaw pretty quick, I'm thinking 20-30 minutes? I never timed it LOL
Throw them (peels off) frozen into the blender for smoothies.
I thaw them in the microwave, using the defrost button. Usually one minute is more than enough for 2-3 bananas. Super easy to peel & super squishy mushy - I love that I don't have to mash 'em with a fork this way.