Arby’s may be famous for roast beef, but its fish sandwich quietly earns plenty of attention every year. When the Lent season rolls around, the chain rolls out seafood options that compete with some of the biggest names in fast food. Many customers know the sandwich is crispy and satisfying, but fewer realize what type of fish actually goes inside it. The answer might sound familiar if you’ve eaten fish sandwiches at other major chains. Here’s a closer look at what’s really in Arby’s Crispy Fish Sandwich and why fans keep ordering it.
Arby’s Has More Than Just “The Meats”

Arby’s built its reputation on roast beef sandwiches and hearty meat-based menu items. Yet every year during the Lenten season, the chain expands its menu with seafood options. These limited-time offerings cater to customers who avoid meat during the season. Among the most popular items is the Crispy Fish Sandwich. It has developed a loyal following despite being overshadowed by Arby’s famous beef lineup.
The Fish Inside an Arby’s Sandwich Revealed

The star of Arby’s Crispy Fish Sandwich is a fillet made from wild-caught Alaskan pollock. This mild white fish is commonly used in fast-food seafood sandwiches. The fish is breaded and fried until crisp before being served in sandwich form. Its light flavor makes it a versatile choice that pairs well with classic toppings. For many customers, the fish itself is the reason the sandwich stands out.
Alaskan Pollock Is a Fast-Food Favorite

Arby’s isn’t the only chain using Alaskan pollock for its fish sandwiches. Other major fast-food brands rely on the same type of fish for their seafood offerings. The species is widely used because it’s abundant and has a mild, flaky texture. Its flavor works well with crispy coatings and sauces. That’s one reason it has become a staple in quick-service fish sandwiches across the country.
The Shape That Makes Arby’s Stand Out

One detail helps Arby’s fish sandwich look different from competitors. Instead of a square patty, the chain serves a more triangular-shaped fillet. The company refers to it as a fillet rather than a patty because it resembles a natural cut of fish. This shape gives the sandwich a more rustic appearance. It also helps Arby’s stand apart in a fast-food category filled with nearly identical sandwiches.
The Classic Crispy Fish Sandwich

Arby’s Crispy Fish Sandwich focuses on simple ingredients that highlight the fish. The breaded pollock fillet is topped with shredded lettuce and tartar sauce. Everything is served on a soft bun that balances the crispy coating. The combination keeps the sandwich familiar yet satisfying. It’s a straightforward take on the classic fast-food fish sandwich formula.
The Deluxe Version Takes Things Further

Arby’s doesn’t stop with just one seafood sandwich. The chain also offers the King’s Hawaiian Fish Deluxe during the same seasonal period. This version uses the same Alaskan pollock fillet but adds a few extra toppings. Customers get lettuce, tartar sauce, a slice of tomato, and cheddar cheese. The sandwich is served on a toasted King’s Hawaiian bun, giving it a sweeter flavor profile.
Why Arby’s Uses the Same Fish for Both

Both fish sandwiches use the same Alaskan pollock fillet. This approach keeps the preparation process simpler for the chain. Instead of managing multiple types of fish patties, Arby’s relies on a single ingredient. The difference between the sandwiches comes from the toppings and the bun. That way, customers get variety without the kitchen needing entirely different ingredients.
Fans Have Strong Opinions About the Sandwich

Online discussions show that Arby’s fish sandwich has plenty of supporters. Some fans say it’s the best fish sandwich in fast food. Others praise the size and quality of the fillet. Conversations on Reddit often compare it directly to competitors like McDonald’s. The debate shows how passionate people can get about something as simple as a fish sandwich.
Size Is One Detail Fans Keep Mentioning

One feature that often comes up in customer reviews is the size of the fish fillet. Some fans say the portion feels noticeably larger than competing sandwiches. In online discussions, people frequently compare it to McDonald’s Filet-O-Fish. A few commenters claim Arby’s version appears almost twice the size. For customers looking for a hearty seafood sandwich, that extra size can be a big selling point.
Lent Is Prime Time for Fast-Food Fish

Arby’s seafood menu typically returns during Lent each year. This is when many customers avoid meat on certain days, leading to higher demand for fish dishes. Fast-food chains often introduce or promote seafood items during this period. For Arby’s, it’s a chance to highlight its pollock-based sandwiches. The seasonal demand helps these items stay popular year after year.
A Fish Sandwich That Stands Out

Arby’s Crispy Fish Sandwich proves the chain offers more than roast beef. With its wild-caught Alaskan pollock fillet, distinctive shape, and generous size, the sandwich has built a loyal fan base. The addition of the King’s Hawaiian Fish Deluxe gives seafood lovers another option during Lent. Whether customers prefer the classic version or the upgraded deluxe, the fish itself remains the star. Have you tried Arby’s fish sandwich, or do you stick with another fast-food favorite? Share your pick in the comments and let us know which one wins your seafood showdown.

