7 months Butter bean and tuna puree This is the ultimate no-cook home-made baby food! Make sure you rinse the beans well, as the liquid in the tin is very salty. Ingredients 2 tbs. tinned butter beans 1 tbs. tinned tuna a little milk or water Place the rinsed butter beans and tuna in a small bowl. Mash with a fork or blend, adding milk or water until the desired consistency is achieved.