Bake bread slices on a baking sheet at 375° for 5 minutes. Set aside.
Drain spinach well, pressing between paper towels.
Process spinach, Parmesan cheese, and next 6 ingredients in a food processor until mixture is smooth.
Spread spinach mixture evenly over bread slices.
Bake at 375° for 5 minutes. Top evenly with roasted pepper strips. Serve immediately.
NOTE: To toast walnuts, spread on a baking sheet, and bake at 350º, stirring occasionally, 5 to 10 minutes.
*1/4 cup pecans may be substituted.