Hi, no problem with the Instant food. Because it contains all the vitamins etc that baby needs now.
Maybe should let the baby try fresh food like banana? Just mash it, dont need to cook. And other food that dont need to cook like Avocado, prune, silken tofu. U can mix to the cereal so that baby can try more flavor of food.
Some time, i will mix oatmeal gerber with banana, oatmeal gerber with avocado/prune. I just use fork to mash the prune.