Snacks and Appetizers

Oven-Baked Tuna and Cheese Croquettes

Oven Baked Tuna and Cheese Croquettes

Ever had a croquette? If you haven’t, they’re basically a breaded fried food roll with a crusty exterior and soft mashed insides. But what’s so great about a croquette, you might ask. Well, here we go:  a golden, crispy outer layer and a soft mashed filling. But that’s not all! Inside, at the very heart of the croquette is a tiny cube of cheese. It’s like the Ferrero Rocher of appetizers. The croquettes I’ll be making today once earned me the compliment of being ‘better than my mother’s’. You can’t get a better compliment than that!

Oven Baked Tuna and Cheese Croquettes

I have a secret ingredient though that may or may not be a little unconventional. Instead of using breadcrumbs to form that crispy outer layer, I use crushed corn flakes. Yes, crushed corn flakes.

I’m not entirely sure how common this is but once upon a time, I had difficulty getting my hands on breadcrumbs. So I thought and thought and thought and came up with this brilliant idea of substituting breadcrumbs with crushed corn flakes. And even though I now have easy access to breadcrumbs, I can’t imagine it any other way.

So there’s my secret. It’s out in the open now. Gather your shopping carts and buy your corn flakes by the dozen because breading will never be the same! Unless of course you already do this. If so, ignore me.

I’ve given you all the reasons why I love my croquettes. There is one thing though that I really don’t look forward to. Have you ever tried doing the triple breading technique with a sausage of mashed potatoes? Because that’s basically what it is; mashed potatoes mixed with tuna and a bunch of other things but for the most part, it’s mashed spuds.

Oven Baked Tuna and Cheese Croquettes

Imagine first rolling them in flour (not a big deal), then dipping them in egg (it’s meeeeeelting!) and then rolling them in breadcrumbs/crushed corn flakes. It’s the second part that needs gentle and persevering hands because if you squeeze too hard during the egg part, your beautiful croquette will die before your very eyes.

So that’s the part that always gets me. After all that, it’s easy peasy cause you refrigerate it for some hours which sorta solidifies them and makes it easier to handle later. So beware the eggy part!

Oven Baked Tuna and Cheese Croquettes

I’ve used canned tuna here but you can be more fancy and go for flaked salmon if you like. Also if the idea of using crushed corn flakes weirds you out, go for your regular breadcrumbs. As for that little cube of cheesy heaven in the middle, it’s supposed to be a soft cheese like Camembert or Brie but it’s pretty forgiving with any other types of cheese, I think. As long as it’s cheese.

Now if you’re looking at the recipe and going ‘One HOUR?’, the majority of the time was spent on the breading. At least for me. Maybe I’m just horribly inefficient at it but it took me that long. Most of it was spent babying the croquettes during the egg breading stage. Let me know how long it took for you.

Tips and tricks:

  • Use your hands to bread the croquettes.
  • Be VERY gentle handling the croquettes during the egg breading stage. Try not to squeeze too hard when you grip it or it will lose form.
  • Wash your hands after the egg breading stage or you’ll end up with a million layers of breaded fingers and you’ll clump the corn flakes breading.
  • Pat in excess crushed corn flakes to get maximum crispiness!
  • Use a food processor to grind the corn flakes.
  • If you prefer frying them, deep-fry the croquettes in batches over medium heat until golden brown.

And with that, let’s get croquetting!

clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Oven Baked Tuna and Cheese Croquettes

Tuna and Cheese Croquettes

  • Author: The Cooking Jar
  • Prep Time: 1 hour
  • Cook Time: 15 mins
  • Total Time: 1 hour 15 mins
  • Yield: 15 Croquettes 1x


  • 2 lb. russet potatoes, peeled and chopped
  • 1 small onion, diced
  • 2 cans tuna (5 oz.), drained
  • 1 tablespoon parsley, chopped
  • 1/4 cup lemon juice
  • 1 tablespoon apple cider vinegar
  • 1 large egg, beaten
  • 1/4 teaspoon ground black pepper
  • 1/2 block cheese (4 oz.), cubed into fifteen 1″ cubes


  • 1/2 cup plain flour
  • Pepper to taste
  • 3 large eggs, beaten
  • 1 1/2 cups crushed corn flakes


  1. Over medium high heat, cook the potatoes in boiling water until fork tender
  2. Remove from heat, drain and mash potatoes in a large mixing bowl
  3. Add onion, tuna, parsley, lemon juice, vinegar, egg and pepper. Mix well and combine
  4. Divide mixture into 15 equal portions. Form about a 3″ sausage with each portion
  5. Work a cheese cube into the center of each croquette
  6. Combine flour and pepper and form a three stage breading station
  7. Toss the croquettes in the seasoned flour, dip into beaten eggs and roll in crushed corn flakes
  8. Refrigerate for a minimum of 3 hours
  9. Line the croquettes up on a baking sheet and bake at 450 degrees F for 15 minutes
  10. Allow 5-10 minutes for them to cool down slightly
  11. Dish and serve warm
A no fuss recipe for slow cooker BBQ pulled chicken. It's literally set and forget until it's time to eat. Serve with coleslaw, pickles and chips!



Shredded Mississippi pot roast in a bowl with pepperoncini peppers.



♡ Affiliate disclosure: As an Amazon Associate, I earn commissions from qualifying purchases from You can learn more about it here.


  • Reply
    January 17, 2016 at 6:52 PM

    I used to make turkey croquettes which is left over diced meat mixed into a white sauce with seasoning like Bell’s. I would put them into an 8X8 pan and chill to close to freezing, then slice the filling into sausage sized pieces prior to breading; then deep fry them. A great old-fashioned supper!

    • Reply
      The Cooking Jar
      January 25, 2016 at 10:54 PM

      Croquettes are super delicious like that. I wish I wasn’t so lazy, I’d love to have some of these again some time!

  • Reply
    May 31, 2014 at 1:20 AM

    This reminds me of the Japanese store that I used to eat at when I was younger. They served all different types of croquettes. Thanks for sharing on The Weekend Social.

    • Reply
      The Cooking Jar
      May 31, 2014 at 7:22 PM

      Thanks for stopping by Erlene and you are most welcome!

  • Reply
    Jess @ Sweet Menu
    May 26, 2014 at 7:03 AM

    Wow these look amazing! Just like they do at restaurants! Would love to pull these out at my next dinner party – impressive!

    • Reply
      The Cooking Jar
      May 26, 2014 at 1:27 PM

      Hey Jess, thanks so much. It feels great hearing something like that after slaving over the breading 🙂 I hope it works out for your dinner party.

  • Reply
    May 25, 2014 at 7:34 PM

    Oooh! I have never tried a croquette. I have never even heard of it before! But this looks SO good!

    • Reply
      The Cooking Jar
      May 25, 2014 at 9:49 PM

      Hi Cathleen, it’s a great snack…a lot of work but worth it!

    Leave a Reply

    Recipe rating

    This site uses Akismet to reduce spam. Learn how your comment data is processed.