In a medium mixing bowl, whisk together the olive oil, lemon juice, oregano, garlic powder, onion powder, salt, and black pepper until well combined.
Add the chicken tenders to the marinade and coat each piece evenly. Cover and refrigerate for 15–30 minutes.
For Mediterranean Chicken Tenders in the air fryer, preheat the air fryer to 400°F (200°C). For pan frying, heat one tablespoon of olive oil in a large skillet over medium-high heat.
Arrange the marinated chicken tenders in a single layer inside the air fryer basket. Cook for 10–12 minutes, flipping halfway through, until golden brown and the internal temperature reaches 165°F (74°C).
For the skillet method, cook the chicken for 5–6 minutes per side until browned and fully cooked.
Remove the chicken from the heat and let it rest for 3–5 minutes.
Garnish with chopped fresh parsley and serve with lemon wedges.