In a large skillet over medium-high heat, warm the 1 tablespoon olive oil. Once the oil is hot, add the chicken and let cook, undisturbed, for 3-4 minutes or until golden brown. Flip the chicken over and add the greens, beans, garlic, spices, and remaining 1 teaspoon salt. Cook until the greens have wilted or thawed, about 2 minutes, stirring occasionally.