Microwave potatoes in bag 6-7 min; let cool 1-2 min; chop into quarters + season with 1 tbsp oil + salt/pep

Meanwhile, pat fillets dry + season with salt/pep + 2 tsp seasoning packet; heat 1 tbsp oil in skillet over med-high (get that pan hot, otherwise the fish will stick); add to pan skin-side down + sear 5-6 min undisturbed until fish naturally releases from pan; flip over + cook 1-2 min until fish is cooked through

Heat 1 tbsp oil in large skillet over med-high + sauté half the spinach with salt/pep 1-2 min until wilted; add rest of spinach + cook 1-2 min until all is wilted; divide everything between plates + top fish with 2 tbsp tzatziki—looks great!