A copycat recipe for the Quiznos vegetable guacamole sub, featuring a guacamole base, toasted vegetables and cheese, topped with crisp lettuce dressed in a tart red wine vinaigrette. This version uses brioche sub rolls and substitutes roasted peppers and kalamata olives for the original's tomatoes and black olives.
Spread guacamole "wall to wall" on both cut sides of the sub roll.
Layer on sliced mushrooms and diced red onion.
Add roasted yellow and red pepper slices and kalamata olives.
Layer on a generous amount of shredded sharp white cheddar and muenster cheese blend.
Place the assembled sub under a 400 F oven for 10 minutes, then blast it under the broiler (or do something similar in your toaster oven, if you have one).
While the sub is toasting, prepare the red wine vinaigrette by combining 1/3 red wine vinegar, 1 tsp dijon mustard, 2/3 olive oil, and salt and pepper to taste (or use a purchased vinaigrette).
Top the toasted sub with the shredded iceberg lettuce that has been tossed in the red wine vinaigrette.
Close the sandwich and enjoy!