Open Faced Croque Monsieur Recipe

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Open Faced Croque Monsieurs

Well hey ya’ll! Happy Friday! Today, I’m sharing with you one of my new favorite dinners that you can have on your table in 15 minutes flat: the Open Faced Croque Monsieurs.

This is one of those oops-I-just-ate-the-whole-pan types of dinners. Warm, creamy, cheesy, and delicious! Here’s how you make them:

Start out by melting some butter in a small pot.

Melting butter in a pot

Stir in a little flour and cook about a minute.

Adding flour

It might look a little funky, but it’s totally normal! Promise!

A roux

Now we can whisk in some milk and let it thicken up.

Adding milk

After a few minutes, you can add in some salt, pepper, nutmeg


And CHEESE! Raise your hand if you’re a cheese addict! *this is me raising both hands. This is grated gruyere. Stir that in to melt and that’s it!

Shredded Cheese

Now we can assemble the sandwiches.


Take some store bought {or homemade} rolls and slice them in half and place into a baking dish.


Spread on some Dijon. J’aime le grey poupon. Oui oui, I speak le French.

Buns with mustard

Top with a some deli ham….and then brace yourselves…

Buns with deli meat

 Pour that sauce overtop of everything! YUM.

Pouring sauce over buns

 Add a little more cheese if you like and bake until hot and bubbly and lightly browned.

Open Faced Croque Monsieurs

Hello lover.

Open Faced Croque Monsieurs

We all loved these {even my 3 year old!} and think you all will too! Enjoy your weekend ☺

Open Faced Croque Monsieurs
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Open Faced Croque Monsieur Recipe

This open-faced Croque Monsieur recipe is a favorite dinner that you can have on the table in 15 minutes. Warm, creamy, cheesy, and tasty!
servings 4 servings
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes


For the sauce-

  • 2 tablespoons Butter
  • 2 tablespoons Flour
  • 1 1/2 cups Milk
  • 1/8 teaspoon ground Nutmeg
  • Salt & pepper to taste
  • 1 1/4 cups grated gruyere cheese divided
  • 4 homemade rolls
  • 1/4 cup Dijon mustard
  • 16 thin slices deli ham


  • Preheat oven to 350 degrees. In a small pot, melt butter over medium heat. Stir in flour until paste forms. Cook 1 minute, then whisk in milk. Continue stirring until sauce thickens, 5 minutes. Stir in salt, pepper, nutmeg and 1 cup of the gruyere cheese. Set aside.
  • Slice rolls in half and spread Dijon mustard over each half. Place into baking dish. Top with 2 slices deli ham. Pour cheese sauce over top and sprinkle with remaining gruyere cheese. Bake 10-15 minutes until hot and bubbly. Serve.


Calories: 428kcal | Carbohydrates: 28g | Protein: 21g | Fat: 26g | Saturated Fat: 14g | Cholesterol: 72mg | Sodium: 677mg | Potassium: 237mg | Fiber: 2g | Sugar: 6g | Vitamin A: 714IU | Vitamin C: 1mg | Calcium: 605mg | Iron: 2mg
Course: Dinner, Lunch
Cuisine: Italian
Keyword: Croque Monsieur

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Recipe Rating

24 Responses
  1. Linde

    Made tfor breakfast this morning for company. Delicous and very easy. I used mozarella because that was what I had on hand. Topped with poached eggs to change it to a Croque Madame! Thank you! Great dish. I’ll make this again!

  2. Kathy

    A brick of gruyere, pressed for time, made these for dinner and all 8 got devoured by my triplets for dinner. Only downfall was 15 min in oven still didn’t look like yours. A flip to broil for another minute and done! All 3 asked this to be put in the rotation. Thank you!!!

  3. Winnie

    I am glad I found you today. This looks like another yummy recipe. When I visited Paris a few years ago, I kept gobbling up the Croque Monsieurs and Madames at lunch time. Love the idea of little casserole ones. Oh my! Merci beaucoup!

  4. GinnyV

    Wow, I came across this post yesterday, thanks to Pinterest, and decided that they would make the perfect lunch for today! They are so yummy! Thanks for sharing this great recipe!

  5. Michelle

    These were amazing!! My son had me lightly fry an egg (sunny side up) and serve it over the top…awesome!! We will make these again and again!

  6. Colleen Rose

    I have to say thank you for this yummy recipe.
    I don’t know where in the world you are but I have just made this for lunch in Hamilton. New Zealand.
    I have had Croc Monsuier in France and also in a French Restaurant in NZ but this is a delicious version.
    I just happened to have some, almost stale, bread rolls and a few slices of ham and it only took a few minutes to make up the white sauce with cheese and nutmeg then a few minutes in the oven to create a yummy lunch.
    I am glad there was no other family members, other than my husband, that I had to share them with.
    Have sent the link to my daughter who actually lives in France.
    I think she already makes it for her children but I thought this was a good way to use up stale rolls.
    Thank you again for a fabulous idea.
    I am going to save your site to my favourites because you seem like my sort of cook.
    Easy recipes and no fuss but delicious.
    New Zealand.

  7. Megan

    I really love how you do step by step photos! This looks so good and I don’t even like deli ham. But you know, I think I’m going to go ahead and try it anyway 🙂

  8. Katie @ Blonde Ambition

    This is such a fun take on Croque Monsieur! I’m sure the French would approve.

    Also, cheese fans fo lyfe!!

  9. Sommer@ASpicyPerspective

    Lauren, Croque Monsieurs is such a guilty pleasure. But since it’s my birthday today I think I’ll take two!

    1. sheryll

      I’m going to try this and the broiled deviled eggs. Let you know how the crowd of not so fond of ham left overs like it. Sheryll