In a big bowl, combine the mushroom strips, olive oil, liquid smoke, garlic and onion powders, oregano, paprika, chili powder, salt, and black pepper.
3 tablespoon olive oil, ½ teaspoon liquid smoke, 1 teaspoon garlic powder, 1 teaspoon onion powder, 1 teaspoon dried oregano, ½ teaspoon paprika, ½ teaspoon salt, ½ teaspoon chili powder, ¼ teaspoon black pepper