Cut 1/4 inch off the top of the bulb of garlic to expose the cloves beneath, but do not peel the garlic, you want to roast it in the skin. Place bulb on a piece of aluminum foil, place butter on top, pour lemon juice over the garlic and sprinkle with kosher salt. Bring up all sides of aluminum foil and twist together to close. Cook for 60 minutes or until garlic cloves are soft and golden in color. Allow to cool.
Reduce oven temperature to 350 degrees.
Combine turkey, shallots, egg, rosemary, sage, thyme, kosher salt and pepper in a bowl. Use a fork to remove garlic cloves from the skin and add to the mixture. Mix well. Roll into approximately 15 meatballs.
Place meatballs in a baking dish. Drizzle olive oil over the top. Bake in 350 degree oven for 30 minutes. Turn on the broiler for 5 minutes to brown. Serve.