Mix the spinach, garlic and onions in a large skillet over medium heat until wilted, about 3 minutes.
Remove from heat and add quinoa, squash and beans. Mix well.
Place tortillas on skillet or griddle prepared with nonstick cooking spray over medium heat. Place spinach/bean mixture on half of the tortilla.
Cook over medium heat for 1-2 minutes on each side until golden brown, making sure to flip over to cook evenly. *Delicately flip over so all of the ingredients don't fall out and all over the place.
Remove from heat and slice in half. Serve immediately.