In a large saucepan, heat the pizza sauce over medium heat. Add 1/4 cup olive oil, chili powder, garlic and dried onion; stir, bring to a boil, then remove from heat and set aside.
Heat the oven to medium-high heat. On a well floured surface, roll out pizza dough into a 9x11-inch rectangle.
Drizzle the dough with 1 tbsp olive oil, lay olive oil side up directly onto the grill and let cook until puffed up (about 3 minutes).
Flip dough and top with enchilada sauce. Layer with spinach, onions, red peppers, jalapenos, fire-roasted tomatoes and chorizo.
Reduce heat to medium-low and top with cheddar and cojita cheeses, close the grill and let cook until cheese is melted (about 3-5 minutes).