Preheat the oven to 400°F
Pat the Cornish hens dry
Remove any giblets from the cavity
Place the hens in a roasting pan
Brush with melted butter or oil
Season inside and out with salt and pepper
Add optional herbs, garlic, lemon, or paprika
Tie the legs together if desired
Roast for 45 to 60 minutes
Baste once or twice during cooking if desired
Check that the internal temperature reaches 165°F in the thickest part of the thigh
Remove from the oven
Let rest for 10 to 15 minutes
Serve whole or halved