Preheat your oven to 400°F (200°C).
Place the whole wheat tortilla on a baking sheet and bake for 3 minutes per side until it starts to become firm and slightly crisp.
Spread the BBQ sauce evenly across the surface of the pre-baked tortilla.
Distribute the cooked, shredded chicken breast and thinly sliced red onions over the sauce.
Sprinkle the mozzarella cheese evenly over the toppings.
Bake the pizza for 8 to 10 minutes, or until the cheese is melted and golden brown.
While the pizza bakes, whisk together the Greek yogurt, garlic powder, and dried dill in a small bowl to create the ranch drizzle.
Remove the pizza from the oven and drizzle the ranch mixture over the top.
Garnish with fresh chopped cilantro, sea salt, and black pepper before slicing.