Home » Recipes » Portabello Mushroom Meatless Burger Suggestions? Portabello Mushroom Meatless Burger - Recipe Cost Cost information for the following is not included. Normally this is because the quantity or ingredient is unknown salt, pepper, and garlic powder to taste Ingredients Per Serving Qty Common Price Price per Serving 4 Portabello Mushrooms, stems removed 1 portabello mushrooms $1.99 per pound $0.37 1 - 2 tsp olive oil 3/8 teaspoon $5.99 per 16 fluid ounces $0.02 Total per Serving $0.39 Total Recipe $1.57 Please Log In or Sign Up to edit Recipe Cost info Email Recipe Cost Send To Message (if any) or Close