In a bowl, mix olive oil, lemon juice, Dijon mustard, crushed garlic, oregano, garlic powder, and salt. Coat chicken thighs evenly and marinate for at least 1 hour (or bake right away).
5-6 Chicken thighs, 1 tablespoon olive oil, Juice from ½ lemon, 3 garlic cloves crushed, 1 teaspoon salt, 2 teaspoon oregano, 1 teaspoon garlic powder, 1 tablespoon Dijon mustard