4 portobello mushrooms, stems removed and caps wiped clean
6 tablespoons good-quality olive oil
Salt and pepper
4 hamburger buns or other sandwich rolls, split
Burger condiments and trimmings as you like
Instructions
Start the coals or heat a gas grill for medium-high direct cooking. Make sure the grates are clean.
Brush the mushrooms with the oil and sprinkle with salt and pepper on both sides. Put the mushrooms on the grill directly over the fire. Close the lid and cook, turning once, until well browned and tender, 3 to 5 minutes per side.
Toast the split buns or rolls, cut side down, for a minute or 2 while the mushrooms finish. Serve as sandwiches, dressed as you like.