This dish derives its name from the color contrast of the two types of pasta. Because it mixes the earthiness of whole wheat with the familiarity of regular pasta, it's a delicious introduction to whole-grain pastas. Truffle oil adds a pleasant, earthy undertone; you can substitute extravirgin olive oil. As with all alfredo dishes, serve immediately.
2 cups 1% low-fat milk
1/3 cup (3 ounces) 1/3-less-fat cream cheese
2 tablespoons all-purpose flour
1 teaspoon salt
1 teaspoon butter
3 garlic cloves, minced
1 cup (4 ounces) grated Parmigiano-Reggiano cheese
1 pound asparagus, trimmed and cut into 2-inch pieces (about 2 cups)
8 ounces uncooked whole wheat spaghetti
8 ounces uncooked spaghetti
2 tablespoons truffle oil
1/4 teaspoon freshly ground black pepper
How to Make It
Preheat oven to 425°.
Combine first four ingredients in a blender; process until smooth.
Melt butter in a saucepan over medium-high heat. Add garlic; sauté 30 seconds. Add milk mixture to pan; cook 3 minutes or until mixture simmers, stirring constantly. Cook 2 minutes or until thickened, stirring constantly. Remove from heat; stir in cheese. Cover.
Place asparagus on jelly-roll pan coated with cooking spray. Bake at 425° 10 minutes or until browned, stirring once.
Cook both pastas according to package directions, omitting salt and fat; drain well.
Place pastas and asparagus in a large bowl. Add cheese mixture, tossing well. Add truffle oil and pepper; toss gently. Serve immediately.