Preheat the oven to 400°F(200°C). Cut the top of the garlic off horizontally.
Place the garlic head on a large piece of tin foil. Drizzle with a tablespoon of the olive oil, season with salt and pepper. Wrap up the head of garlic and roast it for 30 minutes in the oven.
Roll out the crescent dough and press the seams together. Cut into 12 squares.
Lightly grease a mini muffin tin. Press the squares into the tin. Bake for 13-15 minutes, until golden brown and cooked through.
Trim the green onions to remove root end and any yellowing pieces. Cut into 4” sections. Place them on a baking sheet. Drizzle on oil and sprinkle with salt and pepper.
Put them in the oven, on the top rack, on broil. Broil until they are mostly charred.
Remove the scallions from the oven and cool; then chop.
When the garlic is done, squeeze the pulp out of the bulb into a bowl. Mash it with a fork.
Add the chopped scallions, cream cheese, sour cream and some salt and pepper to the bowl; mix well. Season to taste.
Spoon some of the dip into each crescent roll cup and top with sliced green onions.