Croque Monsieur

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

French grilled ham and cheese sandwich smothered in béchamel. This French-inspired sandwich and wrap recipe, ready in about 25 minutes, pairs sourdough bread, ham, gruyère for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 680 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 15 min Serves 2 French cuisine 680 cal/serving
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Ingredients

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Instructions

  1. Step 1: Make béchamel: melt butter, whisk in flour, add milk slowly until thick.
  2. Step 2: Stir in dijon, nutmeg, half the cheese, salt.
  3. Step 3: Spread béchamel on bread, layer ham, top with bread.
  4. Step 4: Spread more béchamel on top, sprinkle remaining gruyère.
  5. Step 5: Broil 3-4 min until bubbly and golden.

Frequently asked questions

How long does Croque Monsieur take to make?

Total time is about 25 minutes (10 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Croque Monsieur?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep sourdough bread from drying out.

Can I substitute ingredients in Croque Monsieur?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Croque Monsieur for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Croque Monsieur?

French sandwiches & wraps like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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