Hello and
I find that something containing protein is good for a "tide me over" snack. A small handful of nuts, small piece of cheese, steamed egg, etc. Fresh fruit or veggies is also good.
I also keep a supply at work of Plum Organics pouches; I prefer the fruit ones, especially peaches and prunes. They are sold as baby food but they are nothing but fruit sauce (like applesauce) which is delicious. They contain nothing except organic fruit.
Wishing you all success