Foryoueats: Roasted Garlic Ravioli

1 head garlic, approximately 10-12 cloves

1 teaspoon olive oil

1 pound cheese-filled ravioli, cooked according to package instructions

6 tablespoons unsalted butter

1¾ cups heavy cream

½ teaspoon kosher salt

½ teaspoon ground pepper

1 cup parmesan cheese, grated

1 cup spinach

salt and pepper, to taste

2 teaspoons all-purpose flour

1 tablespoon heavy cream

Roasted Garlic Ravioli