Filet-O-Fish — McDonald’s UK Menu

ByMillie

The Filet-O-Fish is McDonald’s quiet achiever. It never shouts for attention, it never gets a limited-edition relaunch, and yet it’s been on the menu since the 1960s and has one of the most loyal followings of any item. It’s a simple thing: a crispy fish fillet, half a slice of cheese, and tartare sauce in a soft steamed bun. But done right — and it usually is — it’s one of the most comforting things you can order.

I came to the Filet-O-Fish late. For years I walked straight past it on the menu board, assuming fish at a burger joint couldn’t be worth it. Then a mate insisted I try one, and I got it immediately — crispy fish, tangy tartare sauce and that soft, pillowy steamed bun just works. Now it’s my go-to when I want something lighter than a beef burger but still properly satisfying.

The Filet-O-Fish UK recipe, explained

Anyone looking into the filet-o-fish uk will find the same classic build served worldwide: a sustainably sourced pollock fillet in a crispy crumb coating, half a slice of cheddar cheese, and tartare sauce, served in a soft steamed bun. The fish is MSC-certified sustainable, which is a genuine plus — it’s nice to know the sourcing has been thought about. The steamed bun is a key detail: unlike the toasted buns on the beef burgers, it’s soft and slightly squishy, which suits the delicate fish perfectly.

Taste-wise, the fillet is mild and flaky with a golden, crunchy coating. The tartare sauce is the defining flavour: tangy and creamy, with flecks of gherkin and capers that give it a proper lift. The half slice of cheese adds gentle creaminess without overpowering the fish. It’s soft-on-soft with the crunch of the coating — comforting rather than exciting, and that’s exactly its charm.

How it compares to the rest of the menu

Compared to the beef burgers, the Filet-O-Fish is lighter and less rich — you won’t get that chargrilled depth, but you also won’t feel as full afterwards. Against the Chicken Legend and McCrispy, it’s milder and softer; the chicken options bring crunch and bolder seasoning, while the Filet-O-Fish is all about gentle, balanced flavours.

Who’s it for? Pescatarians, obviously, and anyone observing meat-free Fridays. But also: people who want a lighter lunch, kids who are fussy about beef, and anyone who — like me — dismissed it for years and needs to be converted. It’s also a solid choice if you’re eating late and don’t want something too heavy before bed.

Filet-O-Fish price, calories and availability

On the Filet-O-Fish price in the UK: prices vary by location, so check the app or menu board at your local restaurant. It’s typically one of the more affordable burgers on the menu. For Filet-O-Fish calories and Filet-O-Fish ingredients, the official nutrition data covers everything including allergen information — fish and gluten are the obvious ones to note — and you’ll find a summary in our McDonald’s nutrition guide.

Is the Filet-O-Fish available in the UK? Yes — it’s a permanent core menu item, available during main menu hours at restaurants nationwide. Double versions appear as limited editions occasionally, and they’re well worth trying if you spot one.

My tips for ordering it

  • Ask for extra tartare sauce. The standard amount is fine, but a little extra takes it from good to great. It costs nothing to ask.
  • Try the double when it’s on. The Double Filet-O-Fish appears as a promotion now and then — two fillets, double the comfort. Keep an eye on the menu page for limited editions.
  • Pair it simply. Fries and a soft drink is the classic pairing, and it works. The saltiness of the fries plays nicely against the tangy tartare sauce. Check the deals page for meal offers.
  • Eat it fresh. The steamed bun goes from pillowy to soggy if it sits too long, so this is one to eat straight away, especially on delivery orders.

Don’t sleep on the quiet ones. The Filet-O-Fish has survived six decades on the menu for a reason — give it a try via the mcmenu.uk homepage guides if you want to explore more hidden gems.

FAQs

What fish is in the Filet-O-Fish?
Pollock, which is MSC-certified as sustainably sourced. It’s a mild, flaky white fish.

Why does the Filet-O-Fish only have half a slice of cheese?
A full slice would overpower the delicate fish flavour. The half slice adds creaminess without dominating.

Is the Filet-O-Fish suitable for pescatarians?
Yes — it contains fish and dairy but no meat, so it suits a pescatarian diet. Check allergen info if you have specific dietary needs.

Can I get the Filet-O-Fish as a meal?
Yes, it’s available as a medium or large meal with fries and a drink.