One of my kitchen cupboard favourites is PB2 or PB2 with dark chocolate at the moment.
You can make it runny and have over pancakes, mix it in with your overnight oats etc it is delicious.
Another plus point is if you are cutting back the calories (I am on a cut as going to get that 6 pack popping) then this is 85% less fat then normal nut butters and I can still enjoy it.
1 serving PB2 Macros is:
Calories 45, Fat 1.5g, Carbs 5g, Fiber 2g and Protein 5g