Finely chop the peanuts and set aside. Finely chop the tomato and onion. Combine the tomato, onion, 2 tsp extra virgin olive oil, 1 tsp red wine vinegar and ½ tsp sugar in a large bowl and season with salt and pepper.
Step 2 — Brown mushroom meat
Thinly slice the mushroom meat. Heat 1 tbs olive oil in a medium frypan over high heat. Cook the mushroom meat, stirring, for 4-5 mins until browned and crisp.
Step 3 — Caramelise mushroom meat
Add the umami seasoning, 1 tbs water, 1 tsp sugar and 1 tsp red wine vinegar to the mushroom meat and cook, stirring, for 1 min or until lightly caramelised. Remove the pan from the heat. Taste, then season with salt and pepper.
Step 4 — Heat tortillas
Put the tortillas on a plate, slightly overlapping, and microwave for 30 secs or until warmed through. (If you don't have a microwave, heat a large frypan over medium-high heat. Warm the tortillas, in batches, for 30 secs each side or until heated through.)
Step 5 — Toss salad
While the tortillas are heating, add the salad leaves to the tomato mixture and toss to combine.
Step 6 — Get ready to serve
Spread the chipotle mayonnaise over the tortillas. Divide some of the salad and the mushroom meat among the tortillas, then scatter with the peanuts. Serve the tortillas with the remaining salad.