Description
The Best Grilled Portobello Mushroom Burger is a delectable, hearty alternative to traditional meat burgers that even the most avid carnivores will crave. This delightful dish features marinated portobello mushroom caps grilled until tender and juicy, layered with savory Swiss cheese, caramelized grilled onions, ripe tomatoes, fresh spinach, and creamy avocado. Ideal for summer cookouts or cozy family dinners, this burger not only showcases the rich flavors of mushrooms but also serves as a nutritious option without sacrificing taste. Get ready to impress your guests or enjoy a satisfying meal any day of the week with this easy-to-follow recipe.
Ingredients
Scale
- 4 portobello mushroom caps
- 2 tbsp balsamic vinegar
- 1 tbsp low sodium soy sauce
- 1 tbsp olive oil
- 1 tbsp chopped rosemary
- 1–1/2 tsp steak seasoning
- 4 thick slices red onion
- 4 oz reduced-fat Swiss cheese (sliced thin)
- 4 thin slices tomato
- 1/2 avocado (sliced thin)
- baby spinach
- 4 whole wheat low-calorie buns
Instructions
- In a large bowl, whisk together balsamic vinegar, soy sauce, olive oil, rosemary, and steak seasoning.
- Add portobello caps to the marinade, tossing gently to coat. Let marinate for 20 to 30 minutes.
- Preheat grill or grill pan over medium heat and lightly oil the grate.
- Grill marinated mushrooms for 5 to 7 minutes per side; baste with leftover marinade while grilling.
- In the last minute of grilling, top each mushroom cap with Swiss cheese until melted.
- Grill onion slices for about 1 minute per side and toast buns until golden brown.
- Assemble your burger with spinach on each bun followed by grilled mushrooms, onions, tomato slices, and avocado.
- Prep Time: 30 minutes
- Cook Time: 30 minutes
- Category: Main
- Method: Grilling
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 310
- Sugar: 3g
- Sodium: 450mg
- Fat: 15g
- Saturated Fat: 5g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 8g
- Protein: 12g
- Cholesterol: 20mg