Place the chicken breast between two sheets of parchment paper and pound to a uniform 1/4-inch thickness.
In a shallow bowl, whisk the egg. In a separate shallow dish, combine almond flour, parmesan, oregano, garlic powder, salt, and pepper.
Dip each chicken cutlet into the egg wash, then dredge in the almond flour mixture, pressing firmly to ensure a thick coating.
Heat avocado oil in a large skillet over medium heat until shimmering.
Carefully place the chicken in the skillet and cook for 3-4 minutes per side until the crust is golden brown and the chicken is fully cooked.
While the chicken cooks, steam the green beans in a steamer basket over boiling water for 5-6 minutes until tender-crisp.
Serve the warm, crispy cutlets immediately alongside the steamed green beans.