1 1/2 tablespoons stick margarine or butter |
3 tablespoons all-purpose flour |
2 (12-ounce) cans evaporated skim milk |
1/2 teaspoon salt |
1/8 teaspoon ground nutmeg |
cooking spray |
6 no-boil lasagna noodles |
1 1/2 cups shredded cooked chicken breast (about 6 ounces) |
1 (10-ounce) package frozen chopped spinach, thawed, drained, and squeezed dry |
1/2 teaspoon freshly ground black pepper, divided |
3/4 cup (3 ounces) preshredded reduced-fat pizza-blend cheese or cheddar cheese |