POTATOES: Thoroughly scrub the potatoes. Add to a large pot and cover with 1 inch cold water. Place pot on burner at high heat, and once the water comes to a boil, salt the water -- about 1 teaspoon per pound potatoes. Once water is rapidly boiling, slightly reduce heat to medium high and cook at rapid simmer until potatoes are easily pierced with a fork, about 15-20 minutes, depending on the size (large potatoes will take longer). Once fork tender, drain the potatoes and set aside to slightly cool.
GROUNDBEEF: Meanwhile, measure out the seasonings, dice the onion, and mince the garlic. Heat a large cast iron skillet to medium high heat and drizzle in 1 tablespoon oil. Once oil is shimmering, add in the 1/2 cup diced yellow onion. Sauté for 3-4 minutes and then add in the 1 teaspoon minced garlic. Stir for 30 more seconds and then move the onion and garlic to the edges of the pan. Increase the heat to high and add the ground beef to the center of the pan. Let cook, undisturbed for 30 seconds. Flip to the other side cook undisturbed for 30 more seconds. Then continue to cook the ground beef, crumbling into small pieces with a wooden spoon, until no longer pink. As you cook and crumble the beef, incorporate the onions and garlic into it. Add in all the spices: the 1 and 1/4 teaspoon of garlic powder, oregano, and cumin. Add in the 2 tablespoons paprika. Season to taste with salt and pepper. Stir until fragrant, 2-3 more minutes, and then remove from heat.
FINISHING MEAT MIXTURE: While the beef is browning, dice the boiled potatoes into small 1/2-inch pieces (you should get about 2 cups potatoes). Add to the beef mixture and stir to coat.
TORTILLAS: Add a few tablespoons of canola oil to a nonstick pan and heat over medium high heat. Once the oil is shimmering, add in 1-2 tortillas (or as many as you can fit without overlapping). Fry tortillas until each side is lightly golden brown, about 10-30 seconds per side (tortillas should still be soft and pliable). Drain the tortillas on a paper towel and immediately fold in half (place a paper towel or heavier towel over tortillas to keep them folded in half). Repeat for all the tortillas, adding more oil to the skillet as needed.
SERVE: To serve, spoon the hot beef and potato mixture into the hot tortillas. Immediately add in some grated Cheddar cheese so it can melt. Top each taco with a few slices of dill pickles and serve immediately with hot sauce on the side.
Note 1: The number of corn tortillas used will vary depending on the size of the tortillas used and how full the tacos are filled.