Preheat oven to 400 F, and line a baking sheet with parchment paper.
Put Zucchini and garlic cloves in food processor or blender, and process till chopped into fine pieces ( or could grate zucchini with grater).
Place zucchini garlic mixture into a cheese cloth ( fine weave towel) or layered paper towel, and squeeze out as much water into sink as you can.
Transfer mixture to a mixing bowl, and mix in all remaining ingredients.
Mix until a little thicker ( it won' be like dough , more like a batter ).
Spoon batter onto parchment paper, using back of spoon to spread into a circle.
Don't make too thin, you shouldn't see any paper.
Slide back of spoon around outer rim of tortilla to make even edges.
Bake in oven for 10 to 12 minutes, then take out and put another sheet of parchment paper on top and flip both pieces of parchment paper over back on baking sheet, then slowly peel off parchment paper on top.
Bake again for 8 to 12 minutes till slightly browned.
Can also, at this point, fry lightly in oiled pan, on each side ,to make more crisp.