Pound the chicken breasts to an even thickness to ensure uniform cooking, then season them lightly with salt and pepper.
Set up three shallow dishes: one with flour, one with beaten eggs, and one with panko breadcrumbs mixed with crushed fennel seeds.
Dredge each chicken piece first in the flour, shaking off any excess, then dip into the beaten eggs, allowing excess to drip off, and finally coat thoroughly with the panko mixture, pressing gently to adhere.
Heat olive oil in a large skillet over medium heat until shimmering and slightly fragrant, about 1 minute.
Carefully add the breaded chicken to the hot skillet, cooking in batches if needed, and fry until golden brown and crispy, about 4-5 minutes per side, turning once.
Transfer the cooked chicken to a plate lined with paper towels to drain excess oil, then let rest for a minute.
While the chicken rests, arrange the thinly sliced fennel on a serving platter and sprinkle with Lemon zest for added brightness.
Slice the rested chicken into strips, revealing the crispy exterior and tender inside, then place on top of the fennel or serve alongside.
If desired, sprinkle crushed toasted almonds over the dish for added crunch and flavor contrast.
Serve immediately, allowing the crispy texture of the chicken and the cool, crisp fennel to shine together.