Quick Chicken Salad Croissant Sandwiches
These chicken salad croissant sandwiches come together in practically no time when you start with pre-cooked chicken. A creamy, tangy salad piled into a buttery croissant makes lunch feel like an event.
I keep a batch of the chicken salad in the fridge and assemble sandwiches as needed. They are great for a quick lunch, a shower, or a picnic when you want something that looks put together but takes minimal effort.
What Makes These Sandwiches So Good
The real magic is the contrast between the cold, creamy chicken salad and the shatteringly crisp, buttery croissant. Every bite has crunch from the celery and a little sharpness from the red onion and Dijon mustard.
Using pre-cooked chicken (rotisserie is my go-to) means this recipe is more about assembly than cooking. The whole thing comes together in about 15 minutes, and you can make the salad a day ahead.
Ingredients
- 3 cups diced cooked chicken: rotisserie chicken works beautifully here
- 1/4 cup mayonnaise: use full-fat for the richest texture
- 1/2 cup diced celery: adds essential crunch
- 1/4 cup finely diced red onion: gives a mild, sweet bite
- 2 tbsp chopped fresh dill: or tarragon, for a bright herbal note
- 1 tbsp Dijon mustard: provides tangy depth
- 1 tbsp fresh lemon juice: lifts the whole salad
- 1/2 tsp fine sea salt
- 1/4 tsp black pepper
- 4 large butter croissants: day-old is fine; they’ll still taste great
- 4 large butter lettuce leaves: or any tender green
Variations / Substitutions
- Use half Greek yogurt: swap half the mayo for plain Greek yogurt to lighten the salad without losing creaminess.
- Add fruit: a handful of halved red grapes or diced apple brings a sweet pop that plays nicely against the savory dressing.
- Change the herb: swap dill for chopped chives, parsley, or a little fresh tarragon.
- Try a different protein: leftover roast turkey or even well-drained canned chickpeas work well in place of the chicken.
- Make it nutty: stir in 2 tbsp toasted slivered almonds or chopped pecans for extra texture.
For another fast lunch, try our Turkey and Avocado Wrap.
How to Make Chicken Salad Croissant Sandwiches
Step 1: Mix the Salad
In a large bowl, combine the 3 cups diced chicken, 1/4 cup mayonnaise, 1/2 cup diced celery, 1/4 cup red onion, 2 tbsp dill, 1 tbsp Dijon, 1 tbsp lemon juice, 1/2 tsp salt, and 1/4 tsp pepper. Stir for about 2 minutes until everything is evenly coated. The salad should look creamy but not soupy.
Step 2: Chill the Salad
Cover the bowl with plastic wrap and refrigerate for at least 10 minutes, or up to overnight. This short rest lets the dill and mustard mellow into the chicken, giving you a deeper, more rounded flavor.
Step 3: Fill the Croissants
Slice each of the 4 croissants in half horizontally. Place a lettuce leaf on the bottom half of each, then pile on a generous scoop of the chicken salad. Close with the top and serve right away, while the croissant is still flaky and the salad is cold.
A Few Notes Before You Start
- Rotisserie chicken is the fastest route here; the meat is already seasoned and tender.
- If you want a little warmth, toast the croissant halves in a dry skillet for about 30 seconds per side before assembling.
- Don’t skip the fresh herbs; dill or tarragon brighten the whole salad.
- Make the chicken salad up to 2 days ahead and store it covered in the fridge; the flavors actually improve.
Storing Leftovers
Refrigerate leftover chicken salad in an airtight container for up to 3 days. Stir well before using. Do not assemble the sandwiches more than an hour before serving, or the croissants will lose their crispness.
What to Serve With Chicken Salad Croissant Sandwiches
These sandwiches are a meal on their own, but I love a handful of salt and vinegar chips on the side for a salty crunch. For something greener, a quick cucumber salad with rice vinegar and a pinch of sugar balances the richness. A pile of fresh berries or sliced melon also works nicely.
Frequently Asked Questions
Can I use canned chicken?
Yes, just drain it well and break it apart with a fork. The texture will be softer than fresh cooked chicken, but it works in a pinch.
How do I keep the chicken salad from getting watery?
Make sure your cooked chicken is well drained and not overly moist. If your salad seems too wet, add a little more chicken or a spoonful of breadcrumbs to absorb the extra liquid.
Can I assemble the sandwiches the night before?
No, the croissants will turn soggy. Prepare the salad and slice the croissants ahead, but wait to assemble until just before you’re ready to eat.
Quick Chicken Salad Croissant Sandwiches Recipe
Ingredients
Method
- Combine chicken, mayonnaise, celery, red onion, dill, mustard, lemon juice, salt, and pepper in a large bowl. Stir for about 2 minutes until well mixed.
- Cover and refrigerate at least 10 minutes, or up to overnight.
- Split croissants in half horizontally. Add a lettuce leaf to each bottom half, pile on the chicken salad, close with the top, and serve immediately.
