Heat the oven to 350
In a large pan heat some avocado oil and cook meat until it starts to brown. In a small pot cook the refried beans on low, stirring occasionally.
While the meat is cooking line a baking sheet with parchment paper. Spread out the tortillas onto the sheet (you will need 2 tortillas per pizza) and bake for about 2-3 minutes flipping the tortillas half way trough. For more crispy, tostada-like tortillas spritz them with a little avocado oil and bake for 1-2 minutes longer.
Once the taco meat has browned add your choice of taco seasoning packet, along with the water to make the meat saucy.
When the tortillas are ready switch the oven over to broil on high.
Take one tortilla, spoon a small amount of enchilada sauce on to one side and then spread on a layer of refried beans on top. Next, top the beans with a layer of ground meat. Add your 2nd tortilla on top of the meat and spread a generous amount of enchilada sauce on the tortilla. Sprinkle shredded cheese over the sauce and top with diced tomatoes and sliced green onions. (repeat these steps on the other 2 tortillas)
Place the baking sheet back in the broiler for about 2-3 minutes until the cheese is all melted. Cut your pizzas into fourths, and enjoy!