I've had a Costco executive membership for nearly a decade. There are 10 purchases I swear by every time I shop.

Ground beef is a mealtime staple in our household, and Costco makes it easy for me to keep plenty on hand.

I like this bag of five individually packaged 1-pound frozen logs of meat because they're easy to store and keep fresh until I'm ready to thaw and use them.

A three-pack of Kirkland Signature organic marinara sauce is almost always in my cart.

Each 2-pound jar of sauce can be used to make two meals for our family of four when combined with ground beef and pasta. (I like the Garofalo organic pasta variety pack, which I also grab at Costco).

One of my favorite ways to use the marinara is by simmering it with leftover pot roast in the crockpot for an easy ragù.

My two kids eat apples almost daily, so Costco's large bags feel like a great value.

We like Cosmic Crisp apples because they tend to last longer than other varieties when stored properly. Plus, we love the crisp texture and perfect balance of sweet and tart.

Mashed potatoes aren't necessarily difficult to make, but preparing them takes time and requires more dishes than I like to clean, especially on weeknights.

I always grab some sort of premade mashed potatoes from the prepared food section at Costco for an easy side dish my family loves.

Recently, I picked up a package of Reser's Fine Foods Main St. Bistro restaurant-style mashed potatoes. I like that it includes two individually wrapped containers, so I can use one and freeze the other.

Costco's private-label lightly breaded chicken chunks taste just like frozen nuggets from mainstream brands for a fraction of the price.

We follow the air-fryer directions on the package, and the chicken turns out perfectly golden brown every time.

We love yogurt for a healthy snack, and buying in bulk ensures my family always has some in the fridge.

Each cup of Oikos Triple Zero Greek yogurt is packed with 15 grams of protein — without added sugars or artificial sweeteners. The variety pack offers three flavors, so everyone gets one they love.

Granola is a fun, crunchy treat we enjoy adding to things like yogurt, smoothie bowls, and even ice cream.

Costco offers a variety of family-sized options, making it easy to find something for everyone. On a recent trip, I bought a 34-ounce bag of Purely Elizabeth salty-sweet granola that was on sale for $8 ($3 off).

Kirkland Signature hummus cups are a solid portable snack packed with protein, fiber, and healthy fats.

I like to pair them with fresh produce, like baby carrots and cucumber slices, or pretzel chips and pita bread — all available at Costco.

Costco has an impressive coffee selection: a mix of local beans, international brands, and private-label options — including cups for Keurig and Nespresso machines.

Coffee prices have been rising, but I can still find a pretty great value when I buy beans in bulk at Costco. Recently, I picked up a 2-½ -pound bag of Kirkland Signature House Blend for less than $20.

Costco offers a wide variety of roasted and raw nuts in bulk. My kids especially enjoy snacking on pistachios, or "open-ups" as my 4-year-old calls them.

The roasted nuts satisfy our salt cravings and, with protein and healthy fats, they make a great substitute for less healthful options, like typical potato chips.