Heat pan over medium heat. Spray with cooking spray (recommended Canola Oil). Add zucchini, corn, oregano, cumin, and salsa. Cook 5-7 minutes.
Meanwhile in another medium skillet add black beans with their liquid. Cook over medium low heat for 1-2 mins (until liquid has cooked off).
Once veggies have been cooked thru add chicken broth and cook for another 2 mins.
Take tortilla and add a layer of beans, veggies, and cheese (more salsa if desired). Fold ends of tortilla and roll into burrito shape. Serve on bed of shredded lettuce; topped with more salsa, gaucamole, and lite sour cream ;if desired.