Heat up a BBQ to medium high heat.
In a skillet with a lid, add 1 tablespoon olive oil, and heat over medium high heat. Add all the pizza veggies, and saute for about 5 minutes.
Add the tomato basil sauce and quinoa, and stir until mixture starts to bubble.
Lower the temperature to low, and cover the skillet. Continue to simmer covered for 15-20 minutes, until quinoa has cooked.
Prepare the zucchinis by cutting them lengthwise. Use a spoon to scrape out the seeds making a long hollow down the centers of the zucchinis.
Brush both sides of the zucchini with olive oil, and season with salt and pepper.
Add zucchini to grills cut side down, and grill for about 5 minutes.
Remove zucchinis from grill, and stuff the hollows with the quinoa pizza mixture. Top with shredded mozzarella.
Add zucchinis back to grill and cook for another 5 minutes or until cheese melts.
Garnish with parmesan cheese and fresh herbs and serve hot.