What i like about strawberries is the volume you get for the calories. Say you were to eat a 120 calorie banana, if you were to eat 120 calories of strawberries it would be about 3x the volume of food...perfect for cutting when trying to maximize volume for your calorie intake.
I have been doing fresh frozen blueberries in my greek yogurt. The blueberries do not freeze rock hard and when mixed with the yogurt, have a frozen texture similar to ice cream. Usually mix a no sugar, fruity drink packet like pineapple in with it....delicious.