I'm a competitive swimmer who follows a high-protein diet. Here are 7 things I always buy at Costco.

These delicious West End Cuisine grilled-chicken skewers are an excellent snack or lunch option, and are a favorite of mine.

They're packed with 24 grams of protein and are gluten- and preservative-free. Plus, the Mediterranean seasoning adds so much amazing flavor.

I love that they never leave me too full for my next swim practice, so I can quickly snack on one before I hop in the pool.

Growing up, I was never big on fish, but this delicious stuffed salmon with imitation crabmeat has completely changed my tune. Both my mom and I love having this for dinner after the gym.

I like to pair a filet with fresh vegetables or rice for a hearty, nutritious meal.

Without a doubt, the Kirkland Signature stuffed peppers are my favorite product from Costco. The rich, savory beef, rice, and cheese filling pairs perfectly with the sweet, savory bell peppers.

These are the ideal post-swim or post-workout dinner, and I can even save some peppers for the next day's lunch.

I think this is one of the best Costco meals out there for an unforgettable dinner.

I think the Kirkland Signature chicken Alfredo tastes like it came from a restaurant — without the high price tag.

Better yet, I can get multiple meals from one package.

My grandma, who moved in with my mom and I back in November, has become a big fan of grass-fed ground beef. She loves to cook, and she uses the Rastelli's brand beef for delicious burgers, tacos, stir fry, and so many other family favorites.

We usually buy three or four packs at a time so that we always have some in the freezer.

At least once a week, I grab a package of the Kirkland Signature beef shank for my grandma, which she uses to make an amazing dinner with potatoes and vegetables.

Sometimes, she even puts it in a slow cooker for an effortless meal with even more tender and flavorful beef.

When it's taco night, I always reach for the Kirkland Signature chicken street-taco kit, which is loaded with plenty of protein.

I love that I can fill each tortilla with my favorite toppings and salsa. Sometimes, I even make some Mexican rice to have on the side.