Preheat your oven to 450 degrees Fahrenheit. Lay the tortillas on a rimmed baking sheet. Brush the tortillas with the vegetable oil, thick enough so that the whole side is shiny, but not so thick that you can see pools of oil. Flip them and brush the other sides. Bake for 8 minutes, flipping the tortillas halfway through and rotating the pan. (Because ovens and baking pans vary, check on the tortillas every 2 to 3 minutes to ensure they do not burn. Keep in mind that I would not use flour tortillas here, but if you do, they will need less time.) 8 corn tortillas, 1 tablespoon vegetable oil
While the shells are baking, make the taco meat. In a frying pan over medium heat, cook the ground beef, breaking it up as you cook. When the beef is no longer pink, drain the fat. Stir in the tomato sauce and the taco seasoning. Turn the heat to low and let simmer for 5 minutes.
1/2 pound ground beef, 4 ounces tomato sauce, 1 1/2 tablespoons taco seasoning
Reduce the oven temperature to 350 degrees Fahrenheit.
Construct the pizzas. Spread 1/4 cup of the refried beans on four of the prepared tortillas. Top each one with 1/4 of the beef, about 1/4 cup.
1 cup refried beans
Top each one with the remaining prepared tortillas. Then top each pizza with 2 tablespoons of taco sauce. Add 1/4 cup of the shredded cheese to each pizza. Bake the pizzas for 10 minutes.
1/2 cup taco sauce, 1 cup Colby jack cheese
After you remove them from the oven, top with freshly diced tomatoes and freshly chopped green onions.
2 Roma tomatoes, 3 green onions