1Heat oven to 350°F. Grease bottom and sides of 15x10x1-inch pan with shortening or spray with cooking spray.
2In large bowl, beat granulated sugar, oil and eggs with electric mixer on medium speed, or mix with spoon. Stir in flour, baking powder, salt and cinnamon. Stir in zucchini and pecans. Spread in pan.
3Bake 30 to 40 minutes or until toothpick inserted in center comes out clean and top is golden brown. Cool completely, about 1 hour.
4Meanwhile, in 4-quart saucepan, heat butter over medium heat until light golden brown; remove from heat. Stir in powdered sugar, vanilla and milk until smooth and spreadable. Spread Browned Butter Frosting on cooled bars. For bars, cut into 8 rows by 6 rows. Top each bar with pecan half.