Preheat the oven to 220°C/430°F. Line a sheet pan with foil or parchment paper and spray with nonstick cooking spray.
Slice the chicken breasts into thin strips.
Place the seasoned flour, eggs and breadcrumbs in separate bowls.
Coat the chicken first in the flour, then dip into the egg and finally into the breadcrumbs. Make sure the chicken is well-coated after each step.
Place the chicken onto the prepared sheet pan. Drizzle with the olive oil and place into the oven. Allow to bake for 10-15 minutes, flipping halfway through until the chicken is golden brown and crisp on both sides.
Combine all the sauce ingredients and mix well.
To assemble the tacos, spread a little of the sauce onto each tortilla then top with the chicken and toppings of your choice.