Step 1: Prep and Cook the Potatoes.
Dice the potatoes and boil them for 5 minutes. Drain and add them to an air fryer with spray oil and chip seasoning. Cook at 180°C (350°F) for 20 minutes, shaking halfway through. (Alternatively, roast in the oven at the same temperature until crispy.)
Step 2: Make the Taco Meat.
Heat a frying pan over medium heat and sauté the diced onion until soft. Add the mince and cook until browned. Stir in the garlic and taco seasoning, followed by the tomato purée and water or stock. Let the mixture simmer until the liquid reduces and the flavors meld.
Step 3: Prepare the Guacamole.
Mash the avocados in a bowl with a fork. Stir in the lime juice, chopped coriander, jalapeños, diced red onion, and a pinch of salt.
Step 4: Make the Salsa.
In another bowl, mix the chopped tomatoes, diced jalapeños, red onion, coriander, lime juice, and salt.
Step 5: Assemble the Taco Potatoes.
Plate the crispy potatoes and top with the taco meat. Add dollops of guacamole and salsa on top or on the side. Garnish with extra coriander if desired.