Place the shrimp in a medium bowl and massage salt and pepper into the shrimp with your hands.
Heat a 12 inch cast iron skillet over medium-high heat then add olive oil. When oil is hot add chopped onion, curry powder and smoked paprika. Continue to cook onion with spices until onions begin to soften.
Add butter to skillet with onions then add shrimp and sautéed until shrimp is fully cooked and turns pink. Remove shrimp from skillet and set aside.
Reduce skillet heat to medium-low and add tamari sauce and vinegar. Add greens to skillet and sauté just until greens are wilted then quickly remove from skillet.
Neatly place portions of the greens on serving plates and top with shrimp. Eat and enjoy!