Preheat oven to 425 degrees.
Remove papery outer skin from garlic bulb, but do not peel or separate the cloves. Cut off the top of garlic bulb, exposing individual cloves. Drizzle cut cloves with 1 teaspoon oil. Wrap in foil. Bake 30–35 minutes or until the cloves are soft. Unwrap. When cool, squeeze garlic from skins.
In a Dutch oven, heat remaining oil over medium-high heat. Add pasta; cook and stir over medium-high heat 2–3 minutes or until lightly browned. Add stock; bring to a boil. Reduce heat; simmer, covered, 10–12 minutes or until the pasta is tender and liquid is absorbed.
Stir in cream cheese until melted. Add spinach, Asiago cheese, milk, seasoning blend, salt and roasted garlic; cook and stir until spinach is wilted. Sprinkle with parsley.