Pat the salmon fillet completely dry with a paper towel to ensure a golden, crispy crust.
In a small bowl, combine the sea salt, black pepper, garlic powder, and smoked paprika.
Rub the spice mixture evenly over both sides of the salmon fillet.
Heat the avocado oil in a non-stick skillet over medium-high heat until shimmering.
Place the salmon in the pan and sear for 4-5 minutes until the skin is crispy, then flip and cook for another 3 minutes.
Remove the salmon from the pan and set aside to rest.
In the same pan, add the cooked jasmine rice, spreading it into a thin layer to toast in the residual oil for 3 minutes.
Toss the baby spinach into the pan with the rice, stirring until just wilted.
Stir in the lemon juice and lemon zest, then plate the rice and spinach mixture.
Top with the seared salmon and serve immediately.