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Cheesy French Onion Chicken Sandwiches

Well Plated Recipe by
(2 reviews)
Cheesy French Onion Chicken Sandwiches
  • Prep Time 10 min
  • Total Time 30 min
  • Servings 4
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Cheesy French Onion Chicken Sandwiches

Easy grilled chicken sandwiches with the gourmet flavor of French onion soup and loads of Gruyere cheese. Perfect for a weeknight dinner, campfire, or backyard barbecue.

Ingredients

2
tablespoons extra virgin olive oil, plus additional for oiling grill or skillet
2
large yellow onions
1
bay leaf
1/2
teaspoon kosher salt
2
teaspoons Worcestershire sauce
2
large boneless, skinless chicken breasts, pounded to a 3/4 inch thickness (or 4 thin-cut chicken breasts)
8
ounces Gruyere or (Swiss) cheese
4
whole wheat hamburger buns
2
tablespoons Dijon mustard
1
cup fresh spinach leaves

Directions

  • 1 In a large skillet on medium heat, heat 2 tablespoons olive oil. Add the onions, bay leaf and salt and cook until the onions turn a rich golden brown color and a few lightly crisp, stirring often. Remove from heat, discard bay leaf, and stir in the Worcestershire sauce. Set aside.
  • 2 Preheat a grill or large skillet over medium high heat and brush with olive oil to prevent sticking. Cook chicken until no longer pink and the interior reaches 160°F, turning once, about 4 minutes per side. Top each cooked chicken breast with 2 ounces cheese immediately after flipping.
  • 3 Assemble and serve: Spread the bottom half of each bun with 1 1/2 teaspoons Dijon mustard. Top with fresh spinach, then the cheese-topped chicken, caramelized onions, and finally the top bun half. Serve immediately.
See Step By Step

Step By Step  

Enjoy the flavors of French onion soup ... on a sandwich!

As prepared by Well Plated,

These chicken sandwiches are overflowing with sweet caramelized onions and mounds of gooey cheese. Plus, they're easy to make on the grill or skillet. 

I’m totally that girl who brought a rolling suitcase on a camping trip instead of a backpack. I didn’t want my sundresses to wrinkle! Also, I don’t own a backpack.

While I might not be the most “outdoorsy,” my friends are more than happy to a) invite me camping and b) place me in charge of the food. French Onion Chicken Sandwiches are one of my favorite recipes for campfire dinners, backyard grill outs, or an easy summer weeknight meal.

Prep the caramelized onions in advance, and you're less than 10 minutes away from a grilled sandwich that packs the gourmet flavor of French onion soup, yet is completely appropriate to eat while wearing flip flops.

For a campfire dinner, toss the prepped onions into your cooler before you head into the woods, grill the chicken over the fire, then assemble the sandwiches at a picnic table. These are also a guaranteed hit at your next backyard barbecue – and if you're not lucky enough to own a grill (sadly, we do not), the chicken also tastes fantastic cooked in a cast-iron skillet on the stove.

 

Cheesy French Onion Chicken Sandwiches

Gather up the ingredients, and let’s get grillin’! We begin with yellow onions, boneless chicken breasts (I chose thin-cut chicken to save myself from pounding them out, but regular boneless chicken breasts work well too), and bay leaves for a touch of the savory French onion soup flavor. No self-respecting French onion-inspired sandwich would be complete without cheese, so I chose a ultra creamy, melty Gruyere (Swiss would work well too.)

 

Cheesy French Onion Chicken Sandwiches

Grate and slice cheese and onions. Be sure to “quality test” the cheese at multiple intervals. It’s for the good of the sandwiches.

 

Cheesy French Onion Chicken Sandwiches

Now, caramelize the onions. A slow sauté in olive oil with the bay leaf and a bit of Worcestershire sauce transforms the onions into a sweet, lightly crispy, and completely addictive topping. You should absolutely quality test these golden strands too.

 

Cheesy French Onion Chicken Sandwiches

Buns, be ready. Spread the bottoms with Dijon mustard for a little zip and extra French flair and layer on a bit of spinach for freshness and color.

Grill your chicken, flip, and top with a hefty amount of that gooey good Gruyere. Commence sandwich assembly and…

 

Cheesy French Onion Chicken Sandwiches

 Ohhh-la-lah!  Now this is what I call fine dining. Please excuse me while I squeeze six of these into my rolling suitcase.

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Nutrition Information 
No nutrition information available for this recipe
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