Eggs are usually added to a major meal, but there is no reason why you shouldn’t eat them between meals. Eggs have a ton of high quality nutrients and they contain zero sugar. They’re an excellent source of protein and healthy fats, as well as good cholesterol.
You can boil an egg in 10 minutes, or make an omelette even faster. Whether you decide to make eggs your major meal or a snack is up to you, and it only depends on the quantity. You can also just eat the egg whites. All of the fat content is stored in the yolk, so by consuming the egg whites you will intake a far smaller amount of calories.