I've worked at Costco for 19 years. Here are 9 things I get there for breakfast.

Kirkland Signature egg whites are a breakfast essential for me five days out of the week.

I try to lead a high-protein lifestyle and with the Kirkland Signature egg whites, I reach my goals for maintaining muscle mass without having that many calories. The egg whites have 25 calories and 5 grams of protein per serving.

A box of six cartons costs $11.60 at my Costco.

My family enjoys pancakes every Saturday morning so having a big 10-pound bag of the Krusteaz pancake mix comes in handy. All you have to do is add cold water, mix the batter, and watch as the finished pancakes turn out light and fluffy.

You can also add water, eggs, and oil to the Krusteaz mix to make waffles. I grabbed the pancake mix for $8.

The Kodiak Power Cakes flapjack and waffle mix is a must. I use the mix for pancakes, waffles, and even power-cake muffins for breakfast.

The mix contains 14 grams of protein per serving. Best of all, it's quick and easy because you just need to add cold water.

A set of three 24-ounce boxes is $13 at my location.

Red's turkey-sausage Egg'wiches are perfect when I'm in a hurry and don't have time to make breakfast. They're convenient to grab and heat because they're ready in less than two minutes.

Red's keto-friendly Egg'whiches contain 17 grams of protein with cage-free egg patties, turkey sausage, and cheese. I also like that the Egg'wiches are gluten-free.

A box of eight sandwiches costs $16 at my warehouse.

Kirkland Signature bagels are thick and baked fresh in our bakeries at each warehouse. They come in a variety of flavors including plain, onion, Parmesan, and raisin.

I grabbed two sleeves of six bagels, or a 12 count, for $6.

Quaker instant oatmeal is filling and comes together quickly, so I love to keep it at home and in my locker at work.

I usually get a box of 52 packets that come in three flavors, including apples and cinnamon, maple and brown sugar, and cinnamon and spice.

The Quaker instant oatmeal is $15.50 at my Costco.

Kirkland Signature organic Greek yogurt is a must because it's an easy high-protein snack that can be eaten in so many ways.

I love having nonfat Greek yogurt with some fruit. It's gluten-free and a good source of calcium.

A 48-ounce tub is $6.30 at my location.

I think Thomas' English muffins are a great deal at Costco. Each 24-count package is perfect for meal-prepping breakfast sandwiches and then sticking in the freezer as a grab-and-heat meal.

Thomas' English muffins come presliced and cost as low as $6 at some Costco locations.

The Three Bridges fluffy mini muffin-shaped egg whites with spinach, bell peppers, and a blend of creamy cheeses have so much flavor. You get peppers and cheese in each bite, making them a very filling snack or side.

The egg bites contain 15 grams of protein per serving and only take 90 seconds to heat up.

I picked up four containers of two-packs of egg bites for $11.

Click to keep reading Costco diaries like this one.