Sure! Aside from butterflying the birds, follow the other directions to add herbs and season the hens. You can still brown the birds in a skillet, but do both sides. Instead of setting the birds on top of the rosemary and lemon, stuff those ingredients inside the birds instead. Roast per the same instructions, but know that it may take a few minutes longer to finish cooking. Use a meat thermometer to know when to stop cooking — the thickest part of the thigh should register 165°F.