Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
In a shallow bowl, whisk the egg until smooth.
In a second shallow bowl, combine the almond flour, grated Parmesan, dried oregano, garlic powder, sea salt, and black pepper.
Dip the chicken breast into the egg wash, allowing any excess to drip off, then press firmly into the Parmesan mixture until fully coated.
Heat the olive oil in a non-stick skillet over medium heat.
Add the chicken to the skillet and cook for 4 to 5 minutes per side until the crust is golden brown and the internal temperature reaches 165 degrees Fahrenheit.
While the chicken cooks, warm the marinara sauce in a small saucepan over low heat.
Add the zucchini noodles to the marinara sauce and toss for 1 to 2 minutes just until tender but not mushy.
Transfer the zesty marinara and zucchini noodles to a plate and top with the crispy Parmesan chicken.
Garnish with freshly chopped basil and serve immediately.