This is a sponsored post written by me on behalf of BUSH’S® Beans. All opinions are 100% mine.
Mushroom Swiss Burger — a gourmet burger that’s rich, juicy, and full of umami. Includes a simple burger seasoning blend and an easy burger sauce for the best homemade mushroom beef burger.
Mushroom Swiss Burger
What’s inside:
- Mushrooms—mixed into the patty and piled on top
- Ground beef blended with savory seasonings
- Caramelized onions
- Swiss cheese
- Homemade burger sauce
- Toasted buttery buns (or lettuce wrap)
- Served with a generous side of BUSH’S® Original Baked Beans
Why this burger works
This Mushroom Swiss Burger delivers robust savory flavor with a touch of sweetness from caramelized onions and the classic tang of Swiss cheese. Pairing these burgers with BUSH’S® Original Baked Beans gives you a familiar, comforting contrast—savory meets sweet for a balanced plate.
If you grew up in the South like I did, baked beans are a barbecue staple—they complement burgers and hot dogs perfectly.
How to make a gourmet mushroom beef burger
Mushrooms bring great umami, but they also contain a lot of moisture. To keep patties juicy without falling apart, cook minced mushrooms first. This removes excess water, condenses mushroom flavor, and lets you pack more mushrooms into each bite.
Benefits of pre-cooking minced mushrooms:
- Drains excess liquid so patties hold together
- Intensifies mushroom flavor
- Allows more mushroom per bite without soggy meat
Yes, it’s an extra step — and absolutely worth it.
Simple burger sauce
A good sauce elevates this burger. Mix these basic ingredients for a creamy, tangy topping. Feel free to tweak the ratios or add a dash of your favorite seasoning.
- ¼ cup mayonnaise
- ¼ cup ketchup
- 2 tablespoons mustard
- Optional: a pinch of the burger seasoning below
This sauce pairs beautifully with the mushroom-beef flavor and caramelized onions.
Mushroom Swiss Burger
★★★★★
5 from 5 reviews
- Author: Kristina LaRue, RD, CSSD
- Prep Time: 25 mins
- Cook Time: 8 mins
- Total Time: 33 minutes
- Yield: 4 burgers 1x
Description
A juicy, flavorful mushroom-beef patty topped with caramelized onions and Swiss cheese—paired perfectly with baked beans for a satisfying, home-style meal.
Scale
Ingredients
For mushroom-beef burger
- 8 ounces mushrooms, minced (about 2 cups)
- 1 teaspoon avocado oil
- 1 pound 85–90% lean ground beef
- 1 teaspoon burger seasoning, plus extra for cooking
- 1 teaspoon Worcestershire sauce
For burger seasoning
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon paprika
- ½ teaspoon salt
- ½ teaspoon black pepper
For mushroom-Swiss topping
- 1 teaspoon avocado oil
- 1 sweet yellow onion, thinly sliced
- 8 ounces mushrooms, sliced
- 4 slices Swiss cheese
Instructions
- Pulse mushrooms in a food processor until finely chopped, similar in size to ground beef. Remove any large unprocessed pieces.
- Heat 1 teaspoon oil in a skillet over medium heat. Sauté the minced mushrooms until they release and evaporate their moisture; season lightly with salt and pepper. Transfer to a bowl to cool.
- While mushrooms cool, mix the burger seasoning ingredients together in a small bowl (or use your favorite premade blend).
- For the topping, heat 1 teaspoon oil over medium-low and sauté the sliced onions and mushrooms until the onions are caramelized, about 20 minutes.
- When the minced mushrooms are cool, add the ground beef, burger seasoning, and Worcestershire sauce. Gently combine with your hands, taking care not to overwork the meat.
- Shape into 4 even patties, pressing a slight indentation in the center of each to prevent bulging. Sprinkle each patty with a little extra seasoning just before cooking.
- Grill or cook in a preheated cast iron skillet with a bit of oil over medium heat until desired doneness, a few minutes per side depending on thickness.
- During the last minute of cooking, top each patty with Swiss cheese and the mushroom-onion mixture so the cheese melts. Serve on toasted buns or wrapped in lettuce with your favorite toppings, alongside BUSH’S® Baked Beans.
Equipment
Kitchen knives
Cast iron skillet
Food processor (for mincing mushrooms)
- Category: Dinner
- Method: Grill or Stovetop
- Cuisine: American
Nutrition
- Serving Size: 1 burger patty (1/4 recipe)
- Calories: 301
- Sugar: 3g
- Sodium: 418mg
- Fat: 16g
- Saturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 7g
- Fiber: 2g
- Protein: 28g
- Cholesterol: 85mg
Keywords: mushroom beef burger recipe, gourmet burger, mushroom swiss, burger sauce, caramelized onions