Preheat your oven. Set it to 375°F (190°C). Lightly grease a 9x13-inch baking dish.
Brown the beef. In a large skillet over medium heat, cook the ground beef until no longer pink, breaking it into small crumbles as it cooks. Drain excess grease.
Season the meat. Stir in the taco seasoning and 1/4 cup water.
Let it simmer for 1–2 minutes so the flavors bloom.
Prep your sauce and tortillas. Pour about 1/2 cup enchilada sauce into the baking dish and spread it around to coat the bottom. Warm the tortillas in the microwave for 20–30 seconds so they’re flexible.
Assemble the enchiladas. Place a little beef (about 1/4 cup) and a sprinkle of cheese in the center of each tortilla. Roll it up snugly and place seam-side down in the dish.
Repeat with remaining tortillas.
Sauce and cheese. Pour the remaining enchilada sauce evenly over the rolled tortillas. Top with the rest of the shredded cheese.
Bake. Bake for 18–22 minutes, until the cheese is melted and bubbly and the edges look slightly crisp.
Rest and serve. Let the enchiladas rest for 5 minutes before serving. Add any optional toppings you like.