Portobello mushroom burgers are hearty without trying too hard. The mushrooms soak up flavor, turn juicy and rich as they cook, and deliver that satisfying bite you want from a burger no extras needed. This is simple, hands-on cooking that works just as well on a grill pan as it does outdoors.
Comforting, bold, and built from real ingredients. The Let’s Veg way.

Portobello Mushroom Burgers
Portobello mushroom burgers made juicy and flavorful with a simple marinade. A hearty Let’s Veg vegetarian burger perfect for grilling or stovetop cooking.
Ingredients
Equipment
Cooking Instructions
- Wipe mushroom caps clean with a damp cloth.
- In a small bowl, whisk olive oil, balsamic vinegar, garlic, salt, and pepper.
- Brush both sides of mushrooms generously with marinade.
- Heat a grill pan or skillet over medium heat.
- Cook mushrooms for 5-7 minutes per side, until tender and juicy.
- Add cheese during the last minute of cooking if using.
- Toast buns lightly if desired.
- Assemble burgers with mushrooms and favorite toppings. Serve warm.
Nutrition
Notes
Also works on an outdoor grill
Add roasted red peppers or avocado for extra flavor
Marinate mushrooms up to 30 minutes for deeper taste