A close-up photo by Molly from Transatlantic Notes of her umami mushroom, spinach & pesto sandwich. The pesto and balsamic drizzle ooze over the mozzarella, tomatoes and mushroom/spinach mix.

The Ultimate Umami Mushroom, Spinach & Pesto Sandwich

This sandwich is stacked with juicy, delicious flavours that combine to deliver the ultimate vegetarian umami experience. There's no neat and tidy way to eat this, you've just got to dive right in and relish each tasteful layer.