Preheat your oven to 180°C/gas mark 4. Cut half the celeriac up into steaks. Add to a large roasting pan with olive oil and salt. Roast for 20 minutes, then turn. Continue to roast for a further ...
Roast for 23 minutes for medium-rare (only 20 minutes if it is a long, thin piece). When the beef is cooked, remove from the oven, cover with aluminium foil and leave to rest for 15 minutes.
Preheat oven to 425 degrees. Line a sheet pan with aluminum foil, set beets on top and season with salt and a drizzle of olive oil. Cover tray tightly with more foil. Roast on center rack of oven ...