Have been stocking up on the vegetable purées in the freezer. Took what I had at home which resulted in three purées: carrots, stir fry veg and peas and sweet corn.
Carrots: Peel and chop into small chunks. Boil until soft. Blend and stir in a bit of oil or unsalted butter.
Stir fry veg: Heat the frozen veg in a pan with a little bit of oil and water. Stir a couple of times. Pour out any excess water before blending.
Peas & sweet corn: Pour the peas and corn into a pan (I did 50/50). Fill with just enough water to cover. Let it boil for a couple of minutes before taking off the heat and adding cold water to the pan. Drain the water and blend the veg to a purée.