Ingredients

3 tablespoons butter1/2 cup all-purpose flour2-3/4 cups fat-free milk, divided1-1/2 cups plus 2 tablespoons grated Parmesan cheese, divided3 tablespoons Dijon mustard1/2 teaspoon salt, divided1/4 teaspoon hot pepper sauce1/2 pound sliced fresh mushrooms2 medium onions, chopped2 cups chopped carrots4 garlic cloves, minced1 tablespoon olive oil1 pound fresh spinach, chopped9 lasagna noodles, cooked, rinsed and drained

Preparation

In a large saucepan, melt butter. Stir in flour until smooth. Add 2-1/2 cups milk. Bring to a boil; cook and stir for 1-2 minutes or until thickened. Remove from the heat. Stir in 1-1/2 cups Parmesan cheese, mustard, 1/4 teaspoon salt and hot pepper sauce; set aside.

In a large nonstick skillet, saute the mushrooms, onions, carrots and garlic in oil until tender. Stir in spinach and remaining salt. Cook and stir for 2 minutes or until spinach is wilted; drain.

Remove from the heat; stir in 1-1/2 cups cheese sauce. Combine the remaining cheese sauce and milk. Spread half of the cheese sauce in a 13-in. x 9-in. baking dish coated with cooking spray. Top with three noodles and half the vegetable mixture; repeat. Top with remaining noodles and cheese sauce. Sprinkle with remaining cheese. Bake, uncovered, at 375° for 25-30 minutes or until heated through. Let stand for 10 minutes before cutting.