Soups, yogurt, pudding, scrambled and hard boiled eggs, soft fruits and veggies like peaches, pears, avocados, bananas, zucchini, pasta, mashed potatoes, boiled veggies . Some of this food can be left with little bits of chunks in them to help introduce more solids. Mash the veggies a bit so they are chunky for example.

What are the parents doing to help with this? If they want him off the baby food than they should just eliminate it completely IMO.