Pat the cod fillet completely dry with paper towels to ensure a crisp sear.
In a small bowl, whisk together the smoked paprika, cayenne pepper, garlic powder, sea salt, and black pepper.
Evenly coat both sides of the cod fillet with the spice mixture, pressing gently so the spices adhere.
Heat the avocado oil in a large non-stick skillet over medium-high heat until shimmering.
Carefully place the cod in the skillet and sear for 3 to 4 minutes per side, or until the fish is opaque and flakes easily with a fork.
Remove the cod from the pan and set aside on a plate.
Add the sliced zucchini, bell peppers, and chickpeas to the same skillet, using the residual oil and spices.
Sauté the vegetables for 5 to 6 minutes, stirring infrequently to allow them to develop a charred, roasted exterior.
Drizzle the lemon juice over the vegetables to deglaze the pan and stir to combine.
Plate the spicy cod over the roasted vegetable medley and garnish with fresh chopped parsley.