Remove the salmon fillets from the refrigerator about 15 minutes before you’re ready to cook.
Using a paper towel, pat each fillet on the top and bottom to dry. This is an important step to prevent the fillets from sticking to the pan.
In a small bowl, add paprika, garlic powder, Italian seasoning, salt and freshly ground black pepper. Mix everything well to combine. Season the salmon fillets and set it aside.
In a cast iron skillet, add 1 tablespoon of extra virgin olive oil over medium heat and let the pan heat up for a couple minutes.
Add the fillets skin-side down to the skillet. Cook for about 6-8 minutes (time will depend on the thickness of the salmon fillet). Do not move the fillet. Wait and leave it be.
Flip the fillets and cook for 2 minutes or so.
Remove the salmon from the pan. Transfer the fillets to a paper towel-lined plate and set it aside.
In the same skillet over medium-high heat, add 1 tablespoon of olive oil. Then, add onions and cook until onions are soft and golden.
Add garlic and cook for about 30 seconds.
10. Add sweet potato and ¼ cup of water to help to cook it faster. Close the skillet with a lid and cook the sweet potato for 2 minutes*.
11. When the sweet potatoes are cooked, add kale, salt, pepper and chilli flakes. Mix everything well until the kale wilted.
12. Return the salmon to the pan. Enjoy!