Easy Kale or Collards

1 bunch of kale (or collard greens) washed and sliced into thin ribbons
1 onion, sliced into half moons (optional)
2 to 3 cloves garlic, minced
1 tablespoon olive oil (extra virgin, unrefined is best)
1/2 teaspoon sea salt
1 teaspoon soy sauce (1- to 3-year aged brands such as Mitoku or Eden brands)

Put greens in a large cast iron skillet on a high flame. Add olive oil to pan, then onions (garlic if desired), a pinch of salt, and saute 2 to 3 minutes. Add greens, then soy sauce, and saute for another 4 to 5 minutes or until slightly wilted, but not colorless.