Reheating Steak in the Oven or on the Stovetop This oven-and-pan-sear approach yields the finest juice-to-crisp ratio of all of the tested methods: Begin by preheating your oven to 250°F, which will keep the fluids in the steak and prevent it from drying out. Grab a shallow baking sheet and nestle a stable cooling rack inside of it for added stability.