Preheat oven to 350 °.
In a large bowl, toss broccoli, bell peppers and mushrooms with garlic, Bragg, vinegar and seasoning mix.
Roast vegetables on a lightly oiled cookie sheet, turning occasionally and mounding to keep from drying out, for 30 minutes.
Remove vegetables when done and preheat oven to 450 °.
Spread a thin layer of pasta sauce on tortilla, sprinkle cheese and distribute roasted vegetables and spinach.
Bake on a cookie sheet for approximately 7 minutes or until cheese is melted and tortilla browns around edges.