Recipe: Vegan Sourdough Portobello Mushroom Sandwich

Ingredients

• 1 medium portobello mushroom (at least 3 ounces), scrubbed clean and stem removed
• 1 tablespoon olive oil
• Salt
• Freshly ground black pepper
• 1 teaspoon balsamic vinegar
• 2 slices sourdough sandwich bread
• 1 clove garlic, halved lengthwise
• 2 tablespoons regular or vegan mayonnaise
• 1/2 cup packed baby spinach leaves
• 1/3 cup roasted red peppers

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