Preheat oven to 450°; mix half the potatoes with 1 tbsp oil, salt/pep/fave spices; spread on a sheet pan; roast 15-18 min until tender

Meanwhile, heat 1 tbsp oil in skillet over med-high; pat steak dry, season with salt/pep + sear 3-4 min per side for med-rare (for more well done add 1-2 min per side); rest 5 min + cut into ½-inch slices

Heat 1 tbsp oil in large skillet over med-high + sauté half the spinach with salt/pep 1-2 min until wilted; add remaining spinach + cook 1-2 min more until all spinach is wilted; add ½ container of sauce, stir + warm 2-3 min until smooth + hot; divide everything between plates—that looks so good!