Red Robin Conjures Up a Hauntingly Big Burger and Wicked New Margarita for Spooky Season

Guests can grab their broomsticks and head into Red Robin to enjoy the Mega Monster Burger, Mad Scientist Margarita and spook-tacular deals starting Sept. 29

ENGLEWOOD, Colo., Sept. 25, 2025 /PRNewswire/ -- Red Robin Gourmet Burgers, Inc. (NASDAQ: RRGB) is summoning the spirits of Halloween with a frighteningly tastylineup of limited-time offerings to awaken taste buds from the grave at participating locations.

From Sept. 29 through Nov. 2, Red Robin invites guests to sink their fangs into the new Mega Monster Burger, a monstrous twist on the fan-favorite Monster Double Burger. This beast of a burger comes stacked with three juicy beef patties, six slices of melty cheese, pickle relish, onion, pickles, lettuce, tomato and mayo, served on a black-and-white sesame seed bun. The limited-time burger is served with a bottomless side of choice, and guests can choose from Red Robin's famous Bottomless Steak Fries, Yukon Chips, Side House or Caesar Salad, Steamed Broccoli and more.

Behind every monster is a mad scientist keeping all the bolts and buns in place. Guests can step into the lab with the new Mad Scientist Margarita for only $7.99*. This scary-delicious concoction combines blanco tequila, agave and lime juice. Guests get to mix in the beaker of scarlet elixir (also known as grenadine) tableside.

"Based on the popularity of our recent limited-time triple patty burgers, such as our Gold Medal Burger and Buzzer Beater Burger, along with the larger, exciting trend in beverages, we wanted to go bigger, bolder and just a little bit scarier by introducing the Mega Monster Burger and the Mad Scientist Margarita this spooky season," said Brian Sullivan, executive chef and VP of Culinary & Beverage Innovation at Red Robin. "From dine-in to takeout, Red Robin's got everything you need to ensure every visit is a scream."

Even the youngest of witches and warlocks can get into the spooky spirit with the new bottomless Candied Orange Fizzy Soda. This magical mix is made of candied orange flavor mixed with Sprite^® and topped with cold foam.

Keep the frightening fun alive with eerily good savings, including:

• Free Sundae for Costumed Kids**: From Oct. 29 through Nov. 1, little monsters ages 11 or younger who dine in a restaurant in costume will receive a free sundae. Valid with the purchase of a kids' meal.
• 20 Percent Off To-Go Orders**: From Oct. 30 through Nov. 1, get 20 percent off to-go orders on RedRobin.com or on the Red Robin mobile app with a $30 minimum purchase when you use the code 20SPOOKY.
• 15 Percent Off Catering for Ghoulish Gatherings**: Guests hosting a haunted hangout can receive 15 percent off catering orders on RedRobin.com with code HALLOWEEN from Oct. 31 through Nov. 2.

Make your visits even spookier and join Red Robin Royalty^® today to start earning points and delicious rewards on eligible purchases…if you dare.

*Must be 21 years of age or older to purchase or consume alcohol. Price excludes tax and gratuity.
**Available at participating locations. See RedRobin.com for additional terms and conditions.

About Red Robin Gourmet Burgers, Inc. (NASDAQ: RRGB)
Red Robin Gourmet Burgers, Inc. (www.redrobin.com), is a casual dining restaurant chain founded in 1969 that operates through its wholly owned subsidiary, Red Robin International, Inc., and under the trade name, Red Robin Gourmet Burgers and Brews. We believe nothing brings people together like burgers and fun around our table, and no one makes moments of connection over craveable food more memorable than Red Robin. We serve a variety of burgers and mainstream favorites to Guests of all ages in a casual, playful atmosphere. In addition to our many burger offerings, Red Robin serves a wide array of salads, appetizers, entrees, desserts, signature beverages and Donatos Pizza at select locations. It's easy to enjoy Red Robin anywhere with online ordering available for to-go, delivery and catering. Sign up for the royal treatment by joining Red Robin Royalty^® today and enjoy Bottomless perks and delicious rewards across nearly 500 Red Robin locations in the United States and Canada, including those operating under franchise agreements. Red Robin… YUMMM^®!

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SOURCE Red Robin Gourmet Burgers, Inc.