Around the Campfire
Steakhouse mushroom burgers are a richer burger-night option without needing steakhouse equipment. Mushrooms, onions, Swiss cheese, and a hot griddle do most of the work.
Why This Recipe Works
The Blackstone gives mushrooms and onions room to brown before the burgers cook. Keeping the toppings separate until assembly keeps the burger texture better.
Quick Facts
- Serves: 4
- Heat zone: Medium-high
- Best for: Burger nights, cool evenings, hearty dinners
- Teaches: Topping-first burger workflow
Shopping List
- Ground beef
- Swiss cheese
- Mushrooms
- Onions
- Buns
- Salt and pepper
Home Prep
Slice mushrooms and onions before the trip. Form burger portions at home.
Cooler Packing
Keep beef cold and below ready-to-eat foods. Keep cheese sealed.
Equipment
- Blackstone griddle
- Heavy spatula
- Tongs
- Instant-read thermometer
Heat Zones
Use medium-high for the patties, and a cooler zone for buns.
Ingredients
- 1 1/4 pounds (20 oz) ground beef (80/20 or 85/15)
- 4 slices Swiss cheese (about 4 oz)
- 8 oz mushrooms, sliced
- 1 medium yellow onion, sliced (about 6 oz)
- 4 hamburger buns
- 1 teaspoon kosher salt, divided (plus more to taste)
- 1/2 teaspoon freshly ground black pepper, divided
- 1 tablespoon neutral oil (such as canola or avocado)
Instructions
- Preheat the griddle to medium-high.
- Drizzle 1 tablespoon oil on the surface. Add 8 oz sliced mushrooms and 1 medium sliced onion. Season with 1/2 teaspoon salt and 1/4 teaspoon pepper. Cook until browned and softened (8-10 minutes), stirring occasionally. Move to the cooler side of the griddle to keep warm.
- While veggies cook, form 4 burger patties (about 5 oz each) from the ground beef. Season all sides with 1/2 teaspoon salt and 1/4 teaspoon pepper.
- Place patties on the hot griddle. Cook 3-4 minutes until seared, then flip and cook until internal temperature reaches 160°F (another 3-4 minutes).
- Lay 1 slice Swiss cheese on each patty. Let melt (about 1 minute).
- Place 4 buns, cut side down, on the griddle and toast until golden (1-2 minutes).
- Assemble each burger with a toasted bun, patty with cheese, and a generous spoonful of the mushroom/onion mixture.
Doneness
Ground beef should reach 160°F.
Common Mistakes
- Rushing mushrooms.
- Crowding burger patties.
- Adding toppings before the burger is cooked.
Serving Suggestions
Serve with fries, green beans, corn, or salad. Add steak sauce or burger sauce at the table if desired.
Variations
- Add steak sauce.
- Add bacon.
- Use provolone.
Dietary Adaptations
- Gluten-free: Use gluten-free buns.
- Dairy-free: Skip cheese.
- Low-carb: Serve as a bowl.
Scaling
Cook toppings first, then burgers in batches.
Weather Notes
Wind can reduce sear. Keep burger batches small.
Leftovers
Use leftover patties and mushrooms in breakfast hash or patty melts.
Kid Helper Tasks
Kids can set buns and cheese away from the griddle.
Dragonfly Tip
Mushrooms and onions need their own time. Do not treat them as an afterthought.
Dragonfly Challenge
Try one burger with mushrooms and one with onions only. Pick the better camp burger.