The Best Items New To Costco To Buy In May 2026

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Costco isn't falling out of fashion anytime soon, thanks to its low prices, bulk buys, and cult-favorite delicious hot dogs. But before you make a beeline to the Costco food court and stock up on your usuals on your next visit, consider these products that just hit shelves. Below, you'll find 10 of the best new items to buy at Costco in May 2026, including both generic and brand-name items.

Our favorites range from a fruity bread that received stellar reviews to a four-in-one meal container by Cuisinart to a cheesy pasta staple that's begging for a spot in your regular dinner rotation. Most of these new Costco products are available both online and in store. That said, there's no guarantee in-store products will be stocked at your location, so read this to figure out whether an item is available at Costco before making the trip.

The weather is finally getting warm enough for al fresco dinners, and we're betting these dairy-filled pasta pillows taste even better outdoors. Whether you boil, bake, fry, or grill them, the included Parmesan and herb seasoning can complement a number of added ingredients. Top them with lemon zest, fresh herbs, and burrata, if you're feeling fancy.

Buy Pasta Prima Spinach & Mozzarella Ravioli in stores or online for $14.74.

Grilling season is just around the corner, and this kit might help make the task of feeding a backyard crowd a breeze (it's roughly 2.5 pounds). Starring USDA choice beef, the kit includes marinade and fresh limes for garnishing, making the meat grill ready. There are many ways to serve it, but we'd be compelled to slice the steak (once it's rested) for tacos topped with raw onion and salsa verde.

Buy the Kirkland Signature Flank Steak with Lime Cilantro Marinade in stores or online for $48.10.

Toting an elaborate lunch to work (without making a mess) may have just gotten easier. But really, this massive tub holds up to 4.6 gallons of liquid when fully extended and uncovered, making it a contender for marinating large amounts of food for your next barbecue. Better yet, the tub is collapsible for tidy storage and the lid doubles as a serving tray. Pro tip: Order by May 17 to save $5.

Buy the Cuisinart 4-in-1 XL Expandable Prep & Serve Tub in stores or online for $27.99.

This online exclusive chef's knife has a convex edge stainless-steel blade that can help make precise prep feel second-nature, while the ergonomic handle design can keep your hand from tiring before dinner hits the table. As long as the knife never goes through the dishwasher, it'll stay durable and dependable for the long haul.

Buy the Global 40th Anniversary 7-Inch Fluted Chef's Knife online for $66.99.

Olipop is famous for its better-for-you soda. Each 12-ounce can contains up to 2 to 4 grams of sugar, as well as 6 grams of fiber with 11 to 13 grams of carbohydrates. While the brand offers many expected flavors year-round, this seasonal mix includes strawberry vanilla, raspberry sherbet, and Shirley Temple.

Buy the Olipop Soda Spring Variety Pack in stores or online for $23.99.

We see a summery cheese-and-meat spread in your future, and this stylish charcuterie board is the ultimate way to serve it. Nearly four feet long, the board can serve as a centerpiece for every dinner party or cookout you ever host. It's made from sustainably sourced acacia wood, which will last many summers to come (as long as you stick to hand-washing). Food not included.

Buy the Sango America Inc. XL Acacia Charcuterie Board online for $79.99.