Grilled Portabella Sandwich with Caramelized Onions and Goat Cheese

5 from 1 vote

Grilled Portabella Sandwich with Caramelized Onions and Goat Cheese

This sandwich cooks up quickly if you already have the caramelized onions ready to go. It's a meatless meal that's sure to satisfy even the biggest carnivore.

Prep Time15

Cook Time1

Total Time1 15

Course: Entree

Cuisine: American, Grilling

Keyword: Burger, Caramelized Onions, Goat Cheese, Grilled, Grilling, healthy, Mushroom, Portabella, sandwich, vegan, vegetarian

Servings:

Calories: 238kcal

Author: Carissa Serink

Equipment

Gas or charcoal grill

Ingredients

¼ cup olive oil divided
2 large onions thinly sliced
salt and pepper
4 portabella mushrooms
4 ounces goat cheese crumbled
8 slices of bread or 4 rolls (use Gluten Free bread if you need this recipe to be Gluten Free)

Instructions

Heat 2 teaspoons olive oil over medium heat in a nonstick skillet. Add sliced onions and cook until they begin to soften and turn clear. Season with salt and pepper to taste and reduce heat to medium-low. Continue to cook, stirring occasionally until very soft and golden brown, 30-60 minutes. If onions begin to burn, add 1 Tablespoon of water a a time and/or reduce heat slightly. Remove onions from heat and set aside. Onions can be refrigerated in an airtight container for 3-4 days or frozen until ready to use.
Turn all burners on grill to high heat and allow to heat up for 15 minutes.
Pull of any stems from 4 portabella mushrooms and scrape the brown gills from the underside of the mushrooms with a spoon. Brush or spray both sides of the mushrooms with olive oil and season with salt and pepper. Score the tops of the mushrooms in a grid pattern with a sharp paring knife, being careful not to cut all the way through the mushroom. Lightly brush both sides of bread or the insides of the rolls with olive oil.
Clean and oil grilling surface. Place mushrooms, underside down on grill. Grill until well browned and beginning to soften, 5-7 minutes. Flip mushrooms over. Add one ounce of crumbled goat cheese to each mushroom and cook until cheese is softened and the mushrooms are well browned and softened, 5-7 more minutes. Note that the larger mushrooms will take longer to cook than smaller ones. Pile caramelized onions on top of the goat cheese and heat through, 2-3 minutes.
Remove mushrooms from grill and set aside on a platter. Place bread or rolls (insides down) on grill and grill for 1 minute (flip if using bread to grill second side). Place mushrooms on bread to form a sandwich.

Nutrition