Fruit is basically the same. It must be cooked before hand to preserve it and soften it. Start with fruits such as apples, peaches, pears. Bananas can be frozen also. They don't need to be cooked and may turn brown, but will still be okay and baby won't mind the color.
Next area is meats.
The food they put in those baby food jars is not the most appealing. You can make your own by grinding chicken or beef, with water or other liquids until very smooth consistency. All these foods and be frozen in ice cube trays and then popped out and placed in freezer bags. You might want to invest in some extra ice cube trays for this purpose. When it's feeding time, you will probably only need 1 or 2 cubes to start with.