Pat fillets dry + season with salt/pep + half the seasoning blend; heat 1 tbsp oil in skillet over med-high; add fish to pan + sear 3-4 min undisturbed until fish naturally releases from pan; flip fish over + cook 3-4 min until fish is cooked through

Slice 1 lemon in quarters

Heat 1 tbsp oil in large skillet over med-high + sauté half the spinach + salt/pep 1-2 min until wilted; add remaining spinach + cook 1-2 min more until all spinach is wilted; season with a squeeze of fresh lemon juice

Divide all to plates; serve with a lemon wedge on the side for squeezing onto fish