Pat the salmon fillet dry with a paper towel and season both sides with half of the sea salt, black pepper, and garlic powder.
Rinse and drain the chickpeas, then pat them thoroughly dry with a clean kitchen towel to ensure they get crispy.
In a small bowl, toss the dried chickpeas with the remaining sea salt, black pepper, garlic powder, and the smoked paprika.
Heat the olive oil in a large non-stick skillet over medium-high heat until shimmering.
Add the chickpeas to the skillet and cook for 5-7 minutes, shaking the pan frequently, until they are golden and slightly crunchy.
Push the chickpeas to the side of the pan and place the salmon fillet in the center, skin-side down.
Sear the salmon for 4-5 minutes per side until the exterior is golden-brown and the flesh flakes easily with a fork.
During the last minute of cooking, add the baby spinach to the pan and allow it to wilt slightly in the residual heat.
Remove from heat and drizzle the salmon and chickpeas with fresh lemon juice.
Serve immediately with the wilted spinach and a dollop of Greek yogurt on the side for a creamy finish.