Heat the vegetable oil in a large skillet over medium-high heat.
Divide the ground chicken into 8 equal portions and gently form loose balls.
Season each portion with garlic powder, onion powder, paprika, salt, and pepper.
Place each chicken portion into the hot skillet and immediately press it flat with a sturdy spatula to create thin patties.
Cook for 3 to 4 minutes until the edges become crispy and golden.
Flip and cook another 3 to 4 minutes until fully cooked and the internal temperature reaches 165°F (74°C).
Warm the corn tortillas according to the package directions.
Place one crispy chicken patty on each tortilla. These Crispy Dill Pickle Ranch Smash Chicken Tacos are best assembled while the chicken is still hot.
Top with shredded lettuce, dill pickle slices, shredded cheddar cheese, a drizzle of ranch dressing, and a dollop of sour cream.
Serve immediately while warm and crispy.