7. Protein Bars
Protein bars can be bought as supplement stores or health food stores. However, most of the store bought protein bars contain a lot of sugar, so you should really read the label before buying those.
The other option is to make some yourself. There are hundreds of recipes for making delicious protein bars. The best ingredients to use are a tasty protein powder, some peanut butter, and a small amount of oatmeal to improve the texture. You can also include sugar subsitutes like xylitol or stevia to the mix. Here is an article with great protein bar recipes you can make at home.