While many options are brand new, some chains are also bringing back much-missed fan favorites.

Some of these new menu items won’t be around forever, so don’t delay trying them out.

This offer is valid through Sunday, Sept 29., in the U.S. and Canada.

A trio of new menu items at popular restaurant chains set against a vibrant green background

Photos: The brands. Design: Eat This, Not That!

This month, however, Wendy’s is going back to a classic.

TheVanilla Frosty just returnedto menus following its temporary retirement last spring.

Shake Shack

Shake Shack is known for its tasty burgers and milkshakes made with frozen custard.

chipotle smoked brisket

Courtesy of Chipotle

Black Truffle Parmesan Fries will also be available.

The restaurant chain known for its gourmet-style burgers is launching a menu filled with all things spice.

For a limited time, Red Robin is offering a complimentary glass of 1% milk, a.k.a.

wendy’s vanilla frosty

Courtesy of Wendy’s

The Blazing Bourbon Chicken can be added to any order, whether you prefer a bowl or plate.

Try it with your favorite side dishif you might handle the heat, that is.

It comes with a side dish starting at $14.99.

Black truffle burger from Shake Shack

Photo: Courtesy of Shake Shack

Also available on the Great Barrier Eats menu is the Bloomin' French Onion Sirloin.

It comes served with your choice of steakhouse potato and a side and starts at $32.99.

There are several new options to enjoy on the menu, including a whole branzino.

Red Robin’s new Scorpion wings and Jalapeño Heatwave Burger

Photo: Courtesy of Red Robin

The branzino is available Wednesdays through Sundays.

Add a flair of decadence to your meal at Fogo de Chao with roasted bone marrow.

New to the menu, the center-cut marrow is served with crispy toasts and chimichurri.

The new Coffee Dream Machine blended coffee drink at Jamba

Photo: Jamba

It’s made with roasted butternut squash and Fuji apples drizzled with honey and topped with lime zest.

These items are available now through Nov. 1, starting at $35 in the Capital Grille Lounge.

you’ve got the option to also enjoy this salad as a wrap.

Blazing boubon chicken at Panda Express

Photo: Courtesy of Panda Express

The fast-growing salad chain has two new fall-inspired drinks also joining the menu this month.

The California-based burger chain is bringing back two fan favorites this month.

Pair that with the return of another favorite, the Roasted Garlic Cauliflower side dish.

The Bloomin' French Onion Sirloin at Outback Steakhouse

Photo: Outback Steakhouse

The cauliflower is freshly roasted to order and comes with a side of tangy garlic aioli.

New this month are Spiced Meatballs, available for a limited time through Oct. 27.

Two new butterfly tea-infused drinks have also been added to the menu.

Whole Branzino prepared churrasco style at Fogo de Chao

Photo: Courtesy of Fogo de Chao

The first is the Cosmos Serenade, made with strawberry lemonade.

The second, CocoThai Butterfly, is made with a blend of Thai tea and butterfly tea.

Wagyu buger at the Capital Grille

Photo: The Capital Grille/Facebook

A trio of new menu items at Salad and Go set against a colorful background

Photo: Salad and Go. Design: Eat This, Not That!

Basil Pesto Chicken Sandwich at Habit Burger & Grill

Photo: Habit Burger & Grill/Facebook

The new Chicken Tray Bake from Dig

Photo: Courtesy of Dig

New spicy meatballs at Naf Naf Grill

Photo: Courtesy of Naf Naf Grill

The new Cosmos Serenade at Krak Boba

Photo: Krak Boba/Facebook. Design: Eat This, Not That!