Cook the ground beef in a skillet over medium heat until browned and fragrant, about 8 minutes, breaking it apart with a spoon.
Add taco seasoning to the beef along with a splash of water, then simmer until thickened and flavorful, about 3 minutes. Remove from heat and set aside.
Preheat your oven to 375°F (190°C). Arrange one tortilla on a baking sheet and spoon a layer of seasoned beef evenly over it.
Sprinkle a generous handful of shredded cheese over the beef layer, covering it fully for melty goodness.
Top with a second tortilla, pressing down lightly to help the layers stick together.
Repeat with beef and cheese, creating a second layer, then top with a final tortilla to form a stacked, layered pizza.
Bake in the preheated oven for about 15 minutes, or until the cheese is bubbling and the edges of the tortillas are golden brown and crispy.
Remove from the oven and let it rest for a few minutes. Then, top with diced red onion, jalapeño slices, and dollops of salsa for freshness and heat.
Slice into wedges and serve hot, allowing the layers to retain their crunch and gooey cheese to stretch with each bite.
