Mushroom Swiss Chicken Burgers

Steps

1. 1

   Sautéed mushrooms and onions

   • Heat 1 tbsp butter in a medium skillet over medium-high heat.
   • Once foaming, add the finely chopped mushrooms and cook for 5 minutes, stirring occasionally, until the mushrooms release their moisture and begin to brown.
   • Add the sliced onion, reduce heat to medium, and cook for 6–8 minutes, stirring frequently, until the onions are soft and lightly caramelized.
   • The mixture should be golden and smell deeply savory.
   • Transfer to a plate and let cool for 5 minutes.

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   Ready when: Mushrooms and onions are golden brown and caramelized

   Tip: Cook mushrooms uncovered first to evaporate moisture; this deepens their flavor.

2. 2

   Form burger patties

   • In a mixing bowl, combine the ground chicken, cooled mushroom-onion mixture, panko breadcrumbs, beaten egg, minced garlic, Dijon mustard, and Worcestershire sauce.
   • Season with ¾ tsp salt and ¼ tsp black pepper.
   • Using your hands, gently mix until just combined—do not overmix or the burgers will be dense and tough.
   • Divide into 4 equal portions and shape each into a patty about ¾ inch thick, slightly wider than the buns (they will shrink as they cook).
   • Make a shallow indent with your thumb in the center of each patty to prevent them from puffing up.

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   Ready when: Patties are uniform in size with a thumb indent in the center

   Tip: Keep patties cold until ready to cook. If they feel soft, refrigerate for 10 minutes.

3. 3

   Cook the burgersOven 165°F / 75°C

   • Heat 1 tbsp olive oil in a large skillet over medium-high heat until shimmering.
   • Once hot, carefully place the 4 patties in the skillet (do not crowd; if they don't fit, cook in batches).
   • Cook undisturbed for 5–6 minutes on the first side until golden brown and a crust forms.
   • Flip carefully and cook for 4–5 minutes on the second side.
   • The burgers are done when they reach 165°F (74°C) on an instant-read thermometer inserted into the thickest part, or when they feel firm to the touch and no longer pink inside.

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   Ready when: Golden crust forms; patties are firm and reach 165°F (74°C) internally

   Tip: Resist the urge to press down on the burgers with your spatula—this squeezes out juices and dries them out.

4. 4

   Melt cheese on burgers

   • In the final minute of cooking the second side, place one slice of Swiss cheese on top of each patty.
   • Reduce heat to medium-low, cover the skillet with a lid or foil, and cook for 1 minute until the cheese is melted.
   • If you don't have a lid, drape a piece of foil loosely over the skillet.

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   Ready when: Swiss cheese is melted and glossy

   Tip: Add cheese in the last minute to keep it creamy rather than rubbery.

5. 5

   Toast and assemble buns

   • While the cheese melts, lightly butter the cut sides of the buns and toast them cut-side down in a separate skillet or toaster until golden and crispy, about 1–2 minutes.
   • Place the bottom halves of the buns on serving plates.
   • Top each with a lettuce leaf (if using), a burger patty with melted cheese, a tomato slice (if using), and the bun top.

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   Ready when: Buns are golden and crispy on the cut sides

   Tip: Toast the buns while the cheese melts to keep everything warm when assembling.