In a medium skillet, brown ground beef over medium heat, using a spatula or wooden spoon to chop meat into very small pieces.
Add taco seasoning and water; stir and bring mixture to a boil. Reduce heat and simmer for 5 minutes, stirring occasionally.Transfer meat to a bowl and keep warm.
Preheat the oven to 400°F.
Clean the skillet and fill with 1/2-inch of frying oil. Heat over medium high heat until oil reaches 350°F. Meanwhile, heat refried beans and enchilada sauce in the microwave.
Gently drop one flour tortilla into the hot oil, frying on each side for 2-3 minutes, or until it bubbles up and becomes golden brown.Remove from oil and place on paper towels to drain excess oil.
Place a fried tortilla on a baking sheet. Spread 1/4 cup of refried beans over the tortilla, then spread 1/4 cup of the meat over the refried beans.
Place a second tortilla on top of the meat. Spoon 1/4 cup of enchilada sauce (or desired amount) over the top of the stacked tortilla and top with cheese (1/4 cup or desired amount).
Assemble as many pizzas as will fit on the baking sheet and place in oven. Bake for about 5 minutes, or until cheese melts. Remove pan with pizzas from the oven.
Sprinkle pizza tops with tomatoes and any other toppings you’d like. Cut into fourths and serve immediately.
Notes
Taco Bell pizza is best eaten while it's crisp and melty, right from the oven. This is ly because the tortillas soak up the other ingredients the longer they sit.Reheating the pizzas isn't recommended but if you absolutely have to, reheat them on a sheet pan in a 350°F oven.