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French Onion Chicken Sandwich Recipe

Zona House
These Grilled French Onion Chicken Sandwiches have juicy grilled chicken topped with melted Swiss cheese, caramelized onions, and fresh baby spinach on a lightly toasted deli sandwich bun. Ready in 35 minutes!
5 from 4 votes
Prep Time 5 minutes
Cook Time 30 minutes
Total Time 35 minutes
Course Chicken-Poultry
Cuisine American
Servings 2
Calories 606 kcal

Equipment

Ingredients

  • 2 Tbsp extra virgin olive oil
  • 1 small yellow onion
  • 1 tsp granulated sugar
  • ½ tsp onion powder
  • ½ tsp garlic powder
  • 2 boneless skinless chicken filets (4oz each)
  • 2 slices Swiss cheese
  • 2 hamburger buns (or deli sandwich buns)
  • 1 cup baby spinach

Instructions
 

  • Slice the onion and separate into rings.
  • In large skillet, heat the oil over medium-low heat.
  • Add onion, sugar, onion powder, and garlic powder. Cook and stir often, about 20 minutes or until onions are soft and caramelized.
  • Turn the heat to low and cover to keep warm.
  • Preheat the grill for direct grilling over medium-high heat.
  • Place the two pieces of chicken between two sheets of plastic wrap and pound flat with a meat mallet.
  • Transfer the chicken to the hot grill rack.
  • Close the lid and cook about 5-7 minutes.
  • Optional – place the sandwich rolls on the grill to toast the insides just until lightly browned. Move them to the top warming rack to keep warm while the chicken finishes cooking.
  • Flip the chicken over and cook another 5-7 minutes or until chicken loses its pink color throughout and internal temperature reaches 160 degrees F (71.11 C).
  • Place the Swiss cheese slices on top of the chicken pieces.
  • Close the lid and cook 1 minute or until cheese begins to melt.
  • Assemble the sandwiches using sandwich buns, spinach, chicken with Swiss cheese and caramelized onions.

Video

Notes

  • The chicken can also be pan fried or broiled if you would rather not grill it.
  • Try adding horseradish sauce to this sandwich to kick it up a notch. Don’t be afraid to experiment with customizing this sandwich to your personal taste.

Nutrition

Serving: 1Calories: 606kcalCarbohydrates: 30gProtein: 58gFat: 27gSaturated Fat: 7gPolyunsaturated Fat: 3gMonounsaturated Fat: 14gTrans Fat: 0.03gCholesterol: 160mgSodium: 521mgPotassium: 1079mgFiber: 2gSugar: 8gVitamin A: 1617IUVitamin C: 12mgCalcium: 255mgIron: 3mg
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