Place the chicken breast on a cutting board and slice into even 1-inch thick strips.
Submerge the chicken strips in a bowl with the buttermilk and let marinate for at least 15 minutes to tenderize the meat.
In a separate shallow dish, whisk together the almond flour, smoked paprika, garlic powder, onion powder, sea salt, and black pepper.
Remove each piece of chicken from the buttermilk, allowing excess liquid to drip off, then dredge thoroughly in the seasoned almond flour mixture.
Heat the avocado oil in a large non-stick skillet over medium-high heat until shimmering.
Carefully place the chicken in the skillet and cook for 4 to 5 minutes per side until the coating is golden brown and the internal temperature reaches 165°F.
While the chicken cooks, steam the green beans until they are vibrant and tender-crisp, then serve immediately alongside the crispy chicken.