hard boiled eggs, olives, nuts are the "correct" answer; however, I really like making fun snacks that taste unhealthy but are mostly healthy for you. For example, I will make a simple egg drop soup (instead of the hardboiled egg) that is basically some broth (which you can make at home, either vegs or meat) and then stir in a scrambled egg to make ribbons, a little splash of soy sauce and sesame oil, a tiny amount of scallions, and you feel like you are eating at a takeout chinese restaurant. The air fryer is also the best for the mock fried foods. Also, I love taking some chicken breast, cooking it in lemon, butter, and some wine. You can eat two chicken breast strips for a snack and feel like you had Italian. So, it depends. If you want more fruit instead, I was freezing fresh berries, after portioning them in small tupperware, then let them thaw (sometime i would throw it in the microwave to thaw it out faster), throw a little unsweetened greek yogurt and tiny amount of local honey, so tasty. The thawed berries creates this berry sauce that pairs perfect with the creaminess of the yogurt and the sweetness of the honey. I also love shredding cucumbers and carrots on a mandolin so you get paper thin slices then tossing that in with soy sauce, sesame seed oil, and sriracha, pretty fun. I am rambling! Anyways, I was only going to write Olives.  

 ps stay away from soy sauce, get a gluten free alternative.

Tamari: This is a type of soy sauce that is typically made without wheat. Be sure to check the label, as some brands may still contain small amounts of wheat.

Coconut Aminos: Made from the sap of coconut trees and sea salt, coconut aminos is a popular soy sauce substitute that is naturally gluten-free and has a slightly sweeter taste.

Liquid Aminos: This is a liquid protein concentrate made from soybeans (or sometimes coconut) and is gluten-free. It has a flavor similar to soy sauce.

Bragg's Liquid Aminos: This is a specific brand of liquid aminos that is gluten-free and can be used as a soy sauce substitute.

Miso Paste: While not a direct substitute for soy sauce, miso paste can add a similar umami flavor to dishes. Just ensure you choose a gluten-free variety.