Heat a skillet over medium heat and add the beef. Cook the beef until no longer pink, using a spoon or fork to break up the pieces while it cooks.
Mix in the taco seasoning, enchilada sauce and water and stir to combine. Continue cooking until most of the liquid has evaporated. Remove from heat and set aside.
Heat a cast iron skillet skillet over medium heat and add 1 tablespoon oil.
Heat the tortillas, browning very lightly on both sides, and place on a paper towel line plate. Continue until all tortillas have been toasted. Add more oil as needed.
Line a baking sheet with foil or parchment paper and preheat the oven to 450°F.
Place a tortilla down flat, sprinkle half of it with about 1-2 tablespoon of cheddar cheese and place 1-2 tablespoons of beef on top.
Place half a slice of American cheese on top of the beef and gently fold the other side on top to make a taco. Flatten with a spatula and secure with toothpicks.
Continue with the remaining tortillas until all fillings have been used.
Brush each tortillas with additional oil before placing in the oven.
Bake for 15-20 minutes, until lightly browned at the edges. Remove from oven and cool for 3-5 minutes.
Remove toothpicks and serve with toppings.
Notes
Use a toothpick to secure the taco after filling it with beef and cheese.
Brushing the tortillas with additional oil before baking helps them to become nice and crisp in the oven.
Cook the meat in advance and reheat it when you're ready to use it.
To avoid buying a whole package of America, just buy slices at the deli counter.
You can also crisp these in an air fryer at 375°F for 5-10 minutes (until crisped on the edges) or in a toaster oven until lightly browned and crisped on the edges.