Using the same method as with The Apples, you can also make:
I could go on but I think you get the idea. If it is more cost effective to buy bagged frozen fruit,m especially when they are not in season, you can also simmer frozen fruit right from the bag until it is thawed and, if baby is new to the game, nice and soft. Then puree as usual.
*I prefer to bake or roast sweet potatoes whole (350 until very soft), scoop out the flesh, and puree. With Winter squash, I cut in half, scoop out the seeds and whatnot, and bake at 350 until a fork can go right through it, then scoop out the flesh and puree. I believe they are more flavorful this way, but boiling is fine. Steaming is also a good option.
**Carrots, as well as spinach, beets, and other foods can contain high levels of nitrates. Some people believe you should not make these foods yourself for your baby. If you like, you can skip making them and buy them jarred or frozen, but I find that fresh carrots are one of the least expensive baby foods and my son will not eat the jarred kind and neither would I. So I recommend waiting until at least 8 months to introduce them and dumping the cooking water and using fresh filtered or purified water for pureeing them to avoid adding nitrates back into the baby food.