Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Cut the chicken breast into bite-sized 1-inch cubes and slice the zucchini into thin spears.
In a small shallow bowl, whisk the egg white until it becomes slightly frothy.
In a separate shallow bowl, whisk together the almond flour, parmesan cheese, garlic powder, onion powder, smoked paprika, sea salt, and black pepper.
Dip each chicken cube into the egg white, allowing any excess to drip off, then dredge it through the almond flour mixture until fully coated.
Arrange the coated chicken bites and the zucchini spears in a single layer on the prepared baking sheet.
Drizzle the avocado oil evenly over the chicken and zucchini to help them crisp up in the oven.
Bake for 15 to 18 minutes, flipping the chicken bites halfway through, until the coating is golden brown and the chicken is cooked through.