01 -
Preheat oven to 220°C. Line baking sheet(s) with parchment paper. In a large bowl, toss potato slices with olive oil, onion powder, garlic powder, chili powder, cayenne (if using), salt, and pepper until evenly coated. Arrange in a single layer on prepared sheet(s). Bake for 45 minutes, flipping potatoes every 15 minutes. Increase heat to 230°C and continue baking for 10-15 minutes until golden brown and crispy.
02 -
While potatoes are roasting, heat a large skillet over medium heat. Add ground beef and ¾ of the chopped onion. Cook, breaking up the meat with a spatula, until beef is completely browned and onion has softened, about 8-10 minutes. Drain excess grease if necessary.
03 -
Add taco seasoning to the skillet and stir to coat the meat. Pour in 120-240ml water or broth, adjusting for desired consistency. Simmer for 5-7 minutes until liquid reduces and sauce thickens. Reduce heat to low to keep warm while preparing other components.
04 -
In a medium saucepan, melt butter over medium heat. Whisk in flour, salt, pepper, and chili powder to form a roux; cook for 1 minute while stirring constantly. Gradually whisk in milk until smooth, continuing to stir until mixture begins to simmer and thicken, about 3-5 minutes. Remove from heat and stir in grated cheddar until completely melted and smooth.
05 -
Divide the crispy potato slices among serving bowls. Top with a generous portion of seasoned taco meat, then drizzle liberally with warm cheese sauce.
06 -
Squeeze fresh lime juice over each bowl. Sprinkle with diced tomato, chopped cilantro, and reserved raw onion. Add hot sauce to taste and any optional toppings as desired. Serve immediately while hot.