Mushroom Swiss Burger Recipe with Caramelized Onions
This Mushroom Swiss Burger Recipe with Caramelized Onions is a juicy, restaurant-style burger that’s easy to make and packed with rich, savory flavor. Each bite combines seared beef, melted Swiss cheese, and buttery caramelized onions layered with sautéed mushrooms for that perfect sweet-and-savory balance. It’s simple and feels gourmet without the fuss.
Servings: 4
Calories: 600kcal
Equipment
- Cast iron skillet
- Large skillet
- Spatula
- Meat thermometer
- Toaster
Ingredients
- 1 pound ground beef 85% lean
- 8 ounces cremini or white mushrooms thinly sliced
- 1 small onion thinly sliced
- 1 clove garlic minced
- 2 tablespoons butter
- 1 tablespoon olive oil
- ½ teaspoon garlic powder
- salt and pepper to taste
- 8 slices Swiss cheese
- 4 burger buns
- Italian seasoning optional
Instructions
- In a large skillet, heat the olive oil over low-medium heat.
- Add the thinly sliced onions and cook, stirring occasionally, until they become caramelized, about 15-25 minutes. Stir in minced garlic and cook for 1 minute, until fragrant, then remove from heat.
- In the same skillet, melt the butter over medium-high heat. Add the thinly sliced mushrooms and sauté until they are soft and browned, about 5-7 minutes. Season with salt and pepper, then combine the caramelized onions with the mushrooms.
- Shape the ground beef into 4 patties about ¾ to 1 inch thick. Season with salt pepper and garlic powder.
- Heat a cast iron skillet over medium-high heat. Place the patties on the skillet and cook for 4-5 minutes per side, or until the internal temperature reaches 160°F (71°C).
- During the last minute of cooking the patties, place one slice of Swiss cheese over each burger and cover the skillet briefly to help it melt evenly. Once melted, top each patty with a generous spoonful of the caramelized onion and mushroom mixture. For extra cheesiness and flavor, add another half slice on top with Italian seasoning before assembling your burgers.
- Toast the burger buns in the skillet or a toaster. Place each patty on the bottom half of the bun, cover with the top half, and serve immediately.
Video
Notes
Storage Store leftover mushroom Swiss burgers without buns in airtight containers in the refrigerator for up to 3 days.
Freeze Burger patties without the toppings can be frozen in an air tight container for up to 3 months. Tightly wrap them in plastic wrap or aluminum foil before placing them in the container.
Reheat To reheat, warm the patties in a skillet over medium heat or in the oven at 350°F until heated through.
Substitutions
- Ground Beef: Swap with ground turkey or a plant-based meat alternative for a different protein option.
- Swiss Cheese: Substitute with cheddar or provolone if preferred.
- Butter: Use ghee or olive oil for a dairy-free option.
- Buns: Use brioche, potato rolls, or lettuce wraps for different textures.
Nutrition
Calories: 600kcal | Carbohydrates: 26g | Protein: 37g | Fat: 39g | Saturated Fat: 17g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 14g | Trans Fat: 1g | Cholesterol: 124mg | Sodium: 399mg | Potassium: 624mg | Fiber: 2g | Sugar: 5g | Vitamin A: 458IU | Vitamin C: 3mg | Calcium: 391mg | Iron: 4mg
